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Amplifiers

Friday, October 24th, 2014  
Search For:     Site   Products   Services   Educational  
AmplifiersClick on Sale Price to inquire about item 
ID #ModelDescriptionSale
25887AB Systems Model 1210Contact us about repairs, modifications, and upgrades of these unitsSOLD
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49836AB Systems Precedent 900 parts deckThis is a complete Precedent Series 900, but one channel has failed at low level circuits. Very good cosmetic condition, very good electronic condition overall with no burnt parts. Buy the whole amp as is for $140 and shipping will be expensive, or but just the remaining perfect condition channel board (502-622) for $100. An experienced hobbyist could repair channel 2 with a basic parts kit.$ 140
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42472Accuphase E-202 5 stereo inputs and full analog metering with selectable range. 3 stereo speaker outs, controls for bass, treble, compression, low enhancement, low and high filters, headphone output, stereo surround switching. basic updates to capacitors have been done. Very good #8 condition, professionally cleaned, calibrated, and tested.SOLD
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28422ADA Microfet 100A/B channel volume controls, Presence control, Peak Levels (LED), 1 rack space, 1/4" inputs, unit as new in plasticSOLD
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28420ADA Microtube 100New old stockB-Stock unit, excellent condition, single space design, 1/4" ins/outsSOLD
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43733ADA Microtube 200Power amp. Parts unit. Contact us about repair, parts, or replacement.Contact Us
53234Adcom GFA 545II100 watt audiophile basic amp. #9 Condition. Clean calibration/ bias low use.SOLD
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57237Adcom GFA-25354 channel amplifier with high current amp design. Very well done basic audiophile quality amp. Features dual power supplies, protection status LEDS, input level controls, bridge switch, and banana post outs. This is a nice, low use machine that has been cleaned and checked by an experienced audio tech. Condition: 9$ 300
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55721Adcom GFA-535 IISlimline black, dual power supply, 50 watt per channel. Nice clean low use. 9+/10 condition.$ 166
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28213Adcom GFA-535 power ampExcellent cosmetic condition. Speakers A/B selectable. RCA inputs 60watts/ch at 8 ohms, 100watts/ch at 4 ohms. Serviced and bench tested. SOLD
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34317Adcom GFA-73005-ch Amp$ 600
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51706Adcom power supply capacitor #658-9610-680 15-0024B18000uF 100vDC. Used in excellent condition. Pair available.$ 24
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55192Aiwa SA-P80Stereo power amp, for use with Aiwa Micro System. A/B speaker buttons, 1/4" headphone jack on face. Power indicator .05W - 100W 8 ohm. Continuous power output 65 watts per channel (8 ohms), 100 watts per channel (4 ohms), both channels driven, 20 Hz 20 kHz. Fully serviced, excellent #9 condition.$ 120
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26961Akai AM 2800100 watt per channel integrated amplifier. Alumunim Face. Well done unit, watt meters, 2 independant speaker switching, bass mid treble control, mono stereo reverse and switch, 2 phono, aux tuner in, 2 tape dub, beautiful style, fully restored, excellent condition.

These are well made Japanese machines; very recommended if you want the switching and equalization of analog circuitry. These units have a slightly "tube-a-phonic" sound; robust but slightly "veiled". This character is partly due to many single-ended design transistor circuits which cause .1% THD of the 2nd harmonic distortion. Amplifiers of this kind have a medium dampening factor of 50 to 150 which translates into slightly thicker speaker bass (use heavy gauge wire).
     Of course, specs can vary a little with dynamics and wattage levels. Truth is: the sound character is dominated by your speaker. The more complex the crossover circuit and how well the bass cab is tuned will contribute more to the distortion and effects than the amp itself. The main reason to want these amps is they are healthy and repairable by design, very functional and user friendly, and they incorporate equalization which just sounds right on much program material. If the machine is made well it won't really matter about +/- 10 watts or .05 or even .2% distortion. The dominating factor of spatial detail and fidelity is really the music source (how it was recorded). The weakness in these amps may be the phono preamp section which is better done in modern separates.
SOLD
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53135Alesis Microcue Amp2 stereo inputs, stereo line out, 2 headphone out, 9 volt power supply provided, low use, condition #9$ 88
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46838Alesis RA-100100watt per channel, phone in/out, speaker out, level controls. Excellent #9 condition, very low use hours, AP shielding updates to reduce RFI and hum noise.SOLD
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55672Alesis RS150Reference Stereo Amplifier. Independent level control. Signal/clip LED's. Rackmount face. RCA and 1/4 inch inputs. Banana jack outs. Modified ground P.S. resistors etc. Clean speaker relays. Low use, fully serviced. 9/10 condition. $ 228
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22617AMP BH420Bass amplifierSOLD
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53124AMP KD-400400 watt, 4 channel drum and keyboard amp, each channel has tone, balance and gain control, semi-parametric EQ, 4 band, rack mount - 3 space, master volume and crossover, direct out, 6 inputs, effects loop, condition 9$ 300
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55029AMP KD400Rubber feet set(4). 8-32 machine screws. Like new, 9+$ 6 (full set)
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55028AMP KD400Carry strap handle. 8.5" long, black. With hardware; black and nickel. Like new, #9+$ 8
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52576APTMallory filter caps, 1000 MFD, 75 volt, 95 v surge, pair available, condition #9$ 20
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52700APT face and top cover, minor scratch on the top edge, minor scratch on front but very nice & presentable, condition #8$ 36
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54380Apt 1 ampFace plate. Grey with minor wear around corners. Minor wear, excellent shape, #9$ 68
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54381Apt 1 ampFace plate. Grey with light wear around edges. Minor scuffs, presentable but used, #7$ 32
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Customers outside of the US, please note that international shipping can be costly. Take a look at our shipping policies for more information and estimates of prices and shipping time.
54389Apt 1 ampgrey faceplate with window. Minor wear around edges, a few dull spots on face, ding in center, still presentable, #7+$ 22
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54387Apt 1 ampGrey faceplate with window. Minor wear around edges, light scuffs and sratches on left face, #7$ 20
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54388Apt 1 ampfaceplate, grey with window. Very minor wear around edges, some light dings on face, very presentable, #8$ 34
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54268Apt 1 ampFace plate. Grey with very minor light scratches. #8$ 48
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47011APT 1 face plateStandard, army green and black color. Good #7+ condition with two light but obvious scratches, definitely an acceptable replacement face plate.$ 38
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43341APT amplifier faceSome obvious scratches on edge but not unacceptable as a replacement.$ 20
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54845APT Power Amplifier 1High quality stereo power amp. RCA in, screw post banana jack outs. Mono/Stereo switch. Impedance select switch. Grey face with LED signal/overload. Impedance adjust indicators. Level III mod. Unit was restock with high power Japanese output transistors and bias slightly high to do quasi class A operation. Unit runs slightly warmer. 9/10 condition, minor scratch on face near top.$ 520
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45161AR Amplifier partsWe have many AR amplifier parts available, including transformers, capacitors, knobs... Board #EC1-B (Supply and Regulator), AR Controls Board, 2981-0 amplifier board. Please contact us for information. It will help if you can supply pictures of the parts desired. Parts generally cost between $8 and $20 each.Contact Us
45943ART HeadAmp44 channel stereo headphone amplifier. 1/4" and 1/8" inputs and outputs. New stock.$ 66
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55874ART SLA-11 rack space, 100W per channel amplifier. Tested and fully functioning, in brand new condition. $ 268
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56604ART SLA-1Select low noise 100W, single rack amp. REV 3 modified For Audiophile use with: power switch mod, bias amp mod, fan low noise mod. Condition: New$ 338
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55590ART SLA-1Single Rack Studio Linear Amplifier. 100 Watts x2 @ 8 ohm. 260 Watt bridged mono. XLR and 1/4 ins, Banana outs. Silent thermal dependent cooling system. Modified low noise fan, optimized bias. Minor rack mount rash. Condition: 8+ NFS
24253Audio Research D-100Power amp, rack mountanother unit is possibly available Call for DetailsSOLD
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51311Audio Source Amp 100Auto input sensing of 2 inputs line out slim line NEW$ 160
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50149Audionics CC-2Rackmount, black metal face with handles. 80 watts per channel audiophile amplifier. Excellent condition, very low use time, professionally serviced, calibrated, tested.SOLD
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56156B & K Reference 7270 Series II7 channel amplifier. With level control, THX ultra. Control in/out with defeat on back. Modular robust amplifier boards. 7 RCA in/banana jack out channels. Has silverface faceplate for cosmetic option - light lettering wear. Large footprint, Black brushed aluminum face. Quasi Class A MOSFET design. Low use unit. Fully serviced. All serviced, minor resoldering done to connectors.SOLD
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52408B&K ST-140Stereo power amp. Charcoal black face with silver handles. RCA inputs, one pair speaker output, nice audiophile type amp. Excellent #9+ cosmetic condition, fully cleaned and serviced, reset bias and offset, tightened output transistors, very low use time.$ 260
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42201B&K ST2140Stereo power amp, 300W per channel, 3V High, RCA inputs and balanced XLR inputs, Banana outputs, 3.55mm mini jacks logic control, unit is in impecable condition, very low use time, fully cleaned and servicedSOLD
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36807Behringer Europower EP15002 x 700 Watts into 2 Ohms, 1400 Watts into 4 Ohms bridged operation. Signal and clip LED indicators. Balanced XLR and 1/4" TRS inputs.$ 300
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53854Behringer GMX2102x10 combo amp. With 24 bit analog modular NICE effects and tuner. 2 channels. Stereo line out, stereo lave in, insert loop, aux in, tape in/ out, phones. midi in. Jensen speakers. 8 Condition Minor tole and tears.Contact Us
53822Behringer GMx2122x12 combo amp. 2 channel with 24 bit display and tuner. Insert loop, slave in, line out phones, aux in, loudspeaker out. Jensen speakers USED. Very minor tolex tears, fixed broken effect knobs. 8+ Condition.$162
27522Behringer HA-4000High power headphone distribution amplifier w/ AC cord and manual - 1/4 inch balanced main ins and outs - 4 channels with 2 headphone outs/ch. (stereo) - FRONT PANEL: direct input and level control, left/right mute, mono switches, headphone out, aux in, mix control (aux-main) - channel level control$ 150
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42424Behringer HA-4000Headphone distribution amp, 4 channels. Multiple patch points, very flexible unit. High power, capable of driving wide variety of studio headphones. Left, right, mute, mono switches. Fully inspected and cleaned. A higher quality and rugged original unit. Excellent, #9 condition. Manual included$ 140
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38800Behringer HA-4700 Powerplay Pro-XLPowerplay Pro XL 4 channel Headphone amp. More units are available$ 110
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53213Behringer KX1200I/O board. 7 1/4", 2 RCA L/R, 2 XLR M/F connectors. PCB#204040REVE/02. #9 condition$ 20
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Email Us or call (617) 926-8020 for more information about ADA modifications and repairs.
53212Behringer KX1200Control board. 13 Alps pots with knobs, usefull for control pots. PCB#205040REVE/03. Burnt traces, possible bad OP AMP.Call Us
53210Behringer KX1200Amp power supply module. IC's: LM3886T (x2) PCB: 203040REV/OI. Salvage. Known Tested. Working Supply. #9 Condition.$ 60
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50243BGW #9007-0260-E Board intact clean, some parts removed, can be used for rebuild, parts, can easily be restocked with parts #8$ 22
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52601BGW 250CHigh quality circuit design, reliable, 4 space rack mount, later version production. #9. We can Repair/Service this model and similar amps. Call for more info. 617-926-8020

SOLD
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45149BGW 500 and 750 partsWe have many parts available for BGW amplifiers 500 and 750, including boards, heat sinks, and transistors. Prices generally range between $8 and $30. Please provide us with a picture of the part needed, if possible. Among other parts, we have the following available: Board #9007-0750Contact Us
54085Biamp Systems CPA 130Two channel power amp. One channel working, for parts or hobbyist. 2 rack space unit, nice chassis that can be used to build a new amp using existing 100 watt transformer and filter caps. $ 28
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55341Bogen CTS 1100Mono P.A. Amplifier. 5 mic or line inputs with auto compression. Uses SSM 2015 Mic precompressor IC. 4 to 16 ohm out or 25 volt or 70 volt wiring. 10 band EQ. RCA or balanced screw terminal for mic. Unit has seen low use all tested clean. Power light neon is flashy due to age. 8+/10 condition.$ 280
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43836Bryston Stereo Amp 4BThis unit can definitely be made functional, but it has some aged resistors that should be replaced. Please contact us for more information.SOLD
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44472Cambridge Audio Azur 340AIntegrated amplifier with remote. RCA ins for aux, CD, tuner, DVD, and AV/MD. Tape monitor loop, bass and treble tone controls, two speaker sets, and balance control. Excellent #9 condition with very minor scratches on cover.$ 260
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32325Carver CM-1090Int ampSOLD
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55483Carver M-1.5t1200 Watts demand responsive amp. Left/right RCA inputs. Banana post outputs. Fault indicator LED. Left/right power level LEDs on face. Brushed grey finish with rack loops. Later improved version "rev d" boards. Virtually unused. Fully serviced. Has original box + packing + manual. 9+ condition.SOLD
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43228Carver M-500tPower amplifier. Excellent #9 condition, professionally cleaned, serviced, and tested. RCA inputs, one set of speaker outputs, very nice output meters.SOLD
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43064Crate GX-652 channels each with equalization controls, Reverb, Shape control on lead channel, 1/4" FX send, Phone output for external speakers, Nice thick overdrive for face-melting distortion, this amp wants to shred. #9 condition. (A.P. Guitar folder)$ 160
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57175Crate Limo TX50DBBattery powered amp with car or power supply (provided) charging. XLR and phone inputs; pole mount capable; multi channel with EQ and reverb, echo, chorus DSP. Amp has new battery, weatherproof treated cone, ruggedized power supply, and cabinet dampening. SOLD
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55897Crate Taxi TX-30Battery powered combo amp. 2 inputs/2 channels- ch1 level/ tone controls ch2 gain/low/mid/high/level controls, 1/4 inch insert/phones jack. brand new battery. has charger. AP dampened cabinet, nicer sound. 8" driver 2" tweeter. Unit has seen low use time, All Tolex cover nice. 9 condition$ 200
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46420Crest Audio 3001Intact machine good for parts. Two channel power amp.$ 100
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52052Crown 2653-0016 AC switchHigh power rating switch.$ 12
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53609Crown D150Unit needs repair. Value for face plate and rack. Circuit board intact clean. Missing 739 IC. All transistor in circuit - circuit chassis should missing knobs scratched Cosmetic and mechanics are in excellent condition.call
27050Crown D150Older version all repaired updates done fresh capacitors in audio circuits and power supply. Unit has cosmetic damage on side of face plate, no rack ears, excellent performing conditionSOLD
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50408Crown D150ASilver face unit, 75 watts per channel, phone jack inputs. New, lower noise 739 IC installed, all audio and power supply capacitors updated, carefully calibrated and tested. Excellent cosmetics, with one knob slightly stained.SOLD
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45469Crown DC300A4RU rackmount power amplifier. Channels 1 and 2 level controls on front panel, quarter inch audio inputs and banana terminal speaker outputs on back panel. Very good #8 condition with some minor nicks and scratches and one original knob has minor chip in edge. Professionally cleaned and serviced; AudioPro power supply upgrade with all new capacitors.SOLD
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90011Crown Macrotech 2400 $ 950
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90010Crown Macrotech 5000 $ 1975
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56764Dayton APA 150Audiophile grade 150 watt power amplifier that delivers 75 watts per channel. Very compact, discreet design. New.$ 160
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42313Dayton SA70 Subwoofer Module45 watts RMS @ 8ohm, 70 watts RMS @ 4ohm. Built in crossover, live level and speaker level inputs, pass-thru speaker in/out, auto on/off switch. For speaker building. NEW STOCK with original box and packing.$ 80
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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.
43673Denon POA-2400Dual mono design. 150watt/channel, 250watt peak power. 2 speaker switch. High quality relay. Excellent #9 condition, very low use. Professionally cleaned and serviced with some board resoldering.SOLD
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49149Dynaco A7030watt per channel tube amp with recent set of EL34tubes and 7199 predrive tube. Unit has many updates done to improve reliability and fidelity. Shop engineering unit used to demonstrate updates of tubes. Good #7 cosmetic condition with obvious rust spots on chassis.SOLD
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46222Dynaco SCA-80 power transformerPart #464019 10490e. With color coded leads attached. Good #7 condition with large dent on one side, tested OK.$ 20
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50901Dynaco Stereo 702 channel 32 Watts per channel power amp, chassis and cage low use, uses Dynaco A470 transformer, Sovtek EL34 output tubes, Matched RCA 7199 drive tubes *NEW main filter cap *NEW bias cap, has surge AC resistor, selenium rectifier replaced, circuit board repaired for minor crack #9 condition Contact Us
56062Elan Fan 2Low speed, virtually silent dual cooling fan. Nice slim rack package. Condition: 9$ 30
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54757EMC G400Two channel solid state, 100 watts, similar to Sunn amps. Old school 11 knob style. Normal channel: hi.lo in, volume/bass/mid/treble controls, bright switch. Effects channel: hi/lo in, distortion/reverb controls, bass/lo-mid/hi-mid/treble controls, bright switch. Tolex case in excellent condition, collectors item. Fully serviced, improved power supply to reduce noise and increase power. #9$ 240
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24645Epicure Model 1Heavy duty, beefy, robust amp, up to 3 pairs of speakers 120 W per ch. Exc condition robust sound character. Near mint condition, with updates...SPECIAL SALESOLD
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45665Fender Champion 110With three band EQ and built in spring reverb, foot switchable. 8ohm external speaker jack. 1/4" headphone out. Original 10" Fender speaker. Better quality input control installed by AP. Excellent #9 condition.SOLD
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56545Fender Princeton Chorus2 channel solid state amp. Channel 1 controls: Volume/Mid/Treble/Bass/Reverb; Channel 2 controls: Gain/Limiter/Presence/Volume. Features Chorus effect with rate and depth controls, and Mono/Stereo effects loops. Has original 2x10 drivers. SOLD
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42896Fisher CA-225 amp and Fisher FM-225 tunerTwo units being sold together. Amp has 5 band EQ, A and B speaker sets, stereo balance control, RCA inputs for CD, Tuner, Phono, and TV/Video. Tuner has 8 station memory digital display, and AM/FM antenna ins. Both machines are in #8 conditon and fully calibrated and serviced.SOLD
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56407Fisher TX-50Integrated amp. Unit is totally intact. One channel has shorted output transistor & bad emitter resistor (nothing burned or any obvious problem, probably an easy repair). Face plate and connector all in excellent condition. Unit could be easily converted to class A preamp transistor.$ 80
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928044FYIAround the database you will often see us describe the condition of units on a scale of 1-10. #10 would mean the product is new from one of our suppliers, such as Behringer, Audio Technica, etc. #9 means the product is in perfect condition but is used, #8 implies there are some minor cosmetic scratches but unit is mechanically perfect, and so on and so forth. Contact Us
943195FYIMany of our products are listed as in #9 condition which simply means the item is used but in perfect mechanical and cosmetic condition. #10 condition would be "new in the box". Contact Us
56215Gallein-Krueger 400 RB200 watt bass amp with power cable. 1/4" input with -10db button. Volume/ 3 voicing filters/ treble, hi-mid, lo-mid, bass tone/ boost level with footswitch jack/ master volume/ 2 1/4" speaker outs 4 ohm/ direct out/ send, return on back. AP mod improved filtering capacitors grounds. Black with grey control panel. Minor marks around edges, covers. Low use, fully serviced. 8+/10 condition.$ 258
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47067GASwatt meters, 1 pair, 0.2w-320 watts, 4 ohms, odb = 160 watts, overall size: 2 7/8" x 3 1/2" x 1/2", window view: 1 5/8" x 3 5/8", meter/needle scale in good shape, bezel/smoked plexiglass cover is badly scratched, condition #8, price is for one meter$ 12
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49259GLi A-6600High current control amplifier, 80watts per channel. AP Rev3 modifications for improved grounding and upgraded phono IC. High quality, all metal chassis, discreet audio circuit, high quality controls and switches, two independent speaker sets. Remote control included. New in box.SOLD
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56964GLI A-6600 Amplifier - Mod Rev IIIAudiophile design, high current control amplifier. Upgraded low noise IC, AP Rev 3 mod. Blackface unit with 2 large V/U meters; 1/4" phone jack on face; bayonette speaker terminals. Inputs: Tape/Aux/Tuner/DVD/CD/Phono; Controls: Bass/Treble/Balance/Volume. Used but in like new, #9 condition, with original remote (#8+), box, and packaging. $ 268
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56295GLI A-6600 Mod Rev IIIIntegrated amp. Audiophile grade design with remote for volume input switching. Superior all metal chassis quality controls. High current speaker relays. A.P. modified power supply, phono pre, and RFI modifications. sn 9400129 New condition, 1 time demo from display.$ 288
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37185GLI A-6600 Mod RevIIIntegrated Amp, 80-watt per channel, high-current design. Excellent hi-fi amp w/ remote. Mod RevII, Star ground mod - headphone, chassis and power supply, Upgrade audiophile phono pre. New Unit$ 290
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50534Gli Model A-6300High current control 200 Watt, audiophile mostly discreet circuit design, super low noise, high quality amp 115/230 volt operation, audiophile tone control operation, REV 3 MOD, with remote and instruction manual, #10 New unit$ 280
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50588Gli Model A-6600High current control amplifier, 400 Watt, 60 Watt R.M.S. output, upgraded ground path for lower noise, replaced phono opamp with upgraded burrbrown (OPA #2604AP) for improved noise floor, REV3 # 10 NEW in box$ 280
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50587Gli Model A-6600High current control amplifier, 400 Watt, 60 Watt R.M.S. output, upgraded ground path for lower noise, replaced phono opamp with upgraded burrbrown (OPA #2604AP) for improved noise floor, REV3 # 10 NEW in box$ 280
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37353GLI Pro GA-75Stereo power amp, 3-space w/VU meters. Awesome very well built high current 100 watt amp with meters and level controls, 2 speaker switches.$ 290
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24817H.H. Scott 222c Stereomaster SOLD
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23112H.H. Scott 499Quadraphonic amp, phenomenal conditionSOLD
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If you are having trouble finding parts, enter the name into our search bar at the top of the page.
28121Hafler 220Unit in excellent cosmetic condition!! Incredible solid/stable circuit design. stereo rca line input, left and right channel fuse access. Excellent performing amp! This unit is the updated later version with best quality capacitor/connections etc. Completly inspected, cleaned, serviced, and calibrated. SOLD
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55473Hafler 500Bad solder joints and corrosion inside of machine. Right channel has failure - possible predriver. Low level caps need to be replaced. Fuse holders unsecured. Most mosfets good. Cosmetically OK, minor scratches/corrosion. Unit sold as is for parts. Call (617)926-8020.Contact Us
53593Hafler DH-220Stereo Amplifier. Good cosmetics, mechanical condition. One channel bad, strange problem but board in tact. 1 Channel perfect. #7 Condition.Call
56965Hafler DH-220 power amplifierFactory assembled and modified later version unit, with higher quality parts and high speed bypass caps. Features RCA L/R inputs and fused outputs. Fully serviced and calibrated, low use unit, with some minor scratches on top cover. Condition: 8-SOLD
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48344Hafler Model P-225Good for consumer or pro use. This unit was a shop comparison demo unit and has been worn slightly around the edges and on top cover. Mosfet design runs quasi-A, slightly hot by design. Both channels have input circuit transistors updated and some audiophile caps replaced. Very good #8 condition.SOLD
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52538Harman Kardon Citation 2Stereophonic high fidelity power amplifier. All tube outputs: (4) KT-88 (2 per channel); (6) 12BY7A (3 per channel); 1 voltage, 2 drivers. 4, 8 and 16 ohms taps; adjustable a/c balance; adjustable bias with meter. Set up for Buggera tubes. All tube sockets are clean and tight. Fully calibrated, #8 condition cosmetically, #9 condition internallySOLD
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27014Harman Kardon Citation 22Super quality amplifier, dual power supply, dual mono amplifier design, "esoteric" build quality and fidelity, low use hours and purchased from customer who only used as a spare. Serviced and cleaned, and ruggedized solder points on board, small dent on back corner, otherwise excellent cosmetic and mechanical condition. $1150 retail price.SOLD
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25266Harman Kardon PM650Silver faced unit high current int amp no tuner, 80 W per channel, Excellent basic integrated amp.$ 180
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55260Harman Kardon PM650Hi Current Capability Integrated Amplifier. Phono1/Phono2/Tuner/Aux Inputs. Bass/Treble/Balance/Mode/Tape Out/Volume controls on face. Subsonic/Hogh Cut/Loudness switches, Tape Monitor 1/2 selector, Speaker 1/2 selector, Tone defeat, Cap Trim control. Phono 1 Moving Magnet/ Phono 2 Moving Coil selector. Champagne finish with analog backlit display. Better version unit with low hours use, fully serviced. Has original manual. Condition #9.$ 240
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38240Harman Kardon SR-600Vintage Harman Kardon Receiver, germanium transistor design throughout. Unit needs new capacitors and amplifier repair.Contact Us
40292JBL/UREI 6260Power Amp. 150 watts->8 ohms. XLR/Phone input, Bananna outputs. Low use hours. Low use hours, Excellent performing, super quality audiophile grade amp. $ 340
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40236JVC A-G90 Integrated amp.3/4" with unit. As new in box. 100 watt per channel. highest quality phono pre amp. SOLD
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52290JVC A-GX3stereo integrated amplifier, speakers 1 & 2 on/off, bass, treble, inputs: tuner, phono, CD/aux, and video, tape monitor switch, acoustic expander, stereo/mono, loudness, nice slider volume control. 40watts per channel. Excellent #9 condition.$ 140
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41039JVC A690 integrated amp. $ 240
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48404Kenwood A-7xCompact design, 3/4 size of conventional units. Digital/analog signal switching design, reliable and high fidelity. Excellent basic design, ultra reliable. Inputs: 2 tape in / phono / aux / CD / tuner.$ 150
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27080Kenwood KA-350035 watt integrated amplifier. Silver Face. Phono, Tuner, Aux inputs. Speaker A,B,A+B outputs. Tone controls and balance. Tape A,B monitor, Dubbing A-B,B-A. Cleaned controls and switches, very good mechanical and cosmetic condition.SOLD
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56861Kenwood KA-3500 Integrated Stereo AmplifierSilver brushed aluminum face with 1/4" headphone jack. Inputs: Phono/Tuner/AUX; A/B tape monitor with dubbing switch. This unit has seen low use and has been fully serviced. There is a minor scuff on the top cover but otherwise cosmetics are excellent, and lettering is perfect. Condition: 9-$ 188
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26120Kenwood KA-5700Integrated ampSOLD
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56086Kenwood KA-6000Intact unit with no service done. Appears to have a power supply problem or shorted output transistors. It's dusty inside, but all connectors are intact and all knobs are good. Wood sides are somewhat scratched.$ 30
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51633Kenwood KA-6000Stereo integrated amplifier, in need of repair. Left channel EQ in loudness control has problem, capacitors should be replaced. Excellent candidate for a hobbyist project, good condition ready for full re-cap, all knobs and switches intact.$ 50
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51548Kenwood KA-6000Late 1970's "single ended transistor" design, creates a "tubeaphonic" sound quality. Very good cosmetic condition with minor scuffs on wood and two light bezel caps missing from front. Excellent mechanical/electronic condition, tone controls replaced with higher quality Alps controls, all cleaned, carefully calibrated, all lights working.$ 240
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43692Kenwood KA-76Stereo amplifier. Excellent #9 condition, completely cleaned and serviced. 80 watts per channel. Slim line, black face. With tape1/tape2/CD/aux/tuner/phono ins, 2 speaker outs, and 7 band EQ, Loudness, Balance controls. All discreet circuitry.SOLD
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41847Kenwood KA-87Inputs: Phono w/ ground, Tuner, CD/Aux, Tape 1 Rec and Play, Tape 2 Rec and Play. Outputs: A/B speaker, unswitched A/C, 2 switched A/C outs. Front Panel: 8 band graphic EQ w/ Rec-Engage switch, Loudness switch, power meter, Balance slider control. 80 watts per channel. #8 condition with very minor light stains on face.$ 160
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53295Kenwood KA-88High quality Japanese design. Phono Aux. 2 tape tuner inputs. 7 band eq. Upgrade to high quality speaker relay. 100 watt. Black metal. #9 condition.$ 180
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40697Kenwood KA7100Dual power supply. 80 watts per channel. Bass and treble controls. Phono, aux, tuner in, 2 tape monitors with dubbing. Professionally cleaned and calibrated, very good #8 condition. New lower price! SOLD
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Customers outside of the US, please note that international shipping can be costly. Take a look at our shipping policies for more information and estimates of prices and shipping time.
42184Kenwood KM10688 watts per channel, 2 speaker switches, fully serviced and cleaned, #9 condition$ 200
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45476Kenwood L-07MIIParts unit sold as is. Unit has been partially repaired but has a bad transformer (L01-1611-05). Definitely repairable but this part must be replaced. Circuit boards were repaired at one time.$ 24
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56567Kenwood SS-79 AV Surround AmpCombination surround sound processor and 15 watt amplifier with Dolby stereo. Designed to add on to any stereo and create surround sound for spatial settings. Black slim-line all metal construction. Condition: 9$ 88
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25951Kenwood SS79 Surround AmpBlack face slim-line machine. Does Hall reverb, 15 watts per channel, basic simple design.SOLD
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55385Knight Basic KB-85 60 W Stereo Tube AmpAll original, rare vintage tube amp, in excellent working and cosmetic condition. Has high quality JAN spec GL6/5881 tubes.SOLD
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25165Lafayette 224-BInt tube amp, silver faceSOLD
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55932Lafayette LA-25254 channel amp. Aux/tuner/phono inputs/2ch-front/rear/4ch composer. 4ch-stereo/reverse/front & rear, f&r volume controls, bass/treble controls, 1/4 inch phones. Mono/stereo, loudness hi filter, remote/main switches. Modified all PS caps, upgrade/double values & output amp caps for transformer to run 24dbm pro out. AP improved power filtering & bandwidth response. This machine modified lower noise to be used as 4 channel, Neve/ class A +24dbm capable conversion. Has original manual & schematic. Does very tube like sound character. Silver face unit, faux wood cover. Light scuffs on top cover. 9 condition.$ 300
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55477Lectrosonics Maxi Mouse7 inch Driver. 4 ohm impedance. Sweep test OK. 13017A. 270-9010. Has original mounting hardware. Salvage from low use machine. 9/10 condition.$ 58
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55478Lectrosonics Maxi MouseMain PCB assembly. Controls, switches, jacks. Silver and blackface faceplates. Available for various parts. Call (617)926-8020 for availability of specific parts.Contact Us
48560Lectrosonics Maxi Mouse various partsR1379229 dual 100k control $16, R1379238 10k control $8, 3-position switch $6, amp IC TDA2002 $6. Other parts may be available.Contact Us
57293Legion Sound Amplifier60 watt/channel, 2 rack space amp with XLR and phone ins. Unit converted to hifi amp; no fans. Level controls relays. Obvious scratches on cover face. Condition: 7+$ 120
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24128Luxman 5M521Silver face beautiful design Large Meters, audiophile quality unit, was $1500 in 1980, 200W/ch @ 4 OHM, 100 @ 8 OHM Part of matching 3-piece set. Also included are Luxman 5C50 Preamp (see preamps), and Luxman 5T50 Tuner (see receivers)... **SPECIAL WHOLE SYSTEM SALE**

All our machines have been serviced in our shop to be guaranteed functioning and reliable well into the future. They are sold with service logs explaining the work performed on each individual unit. It is important to hold onto these service logs as they will provide valuable information to any tech servicing the machine in the future.
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49581Luxman DML-1 module TC0064Original replacement upgrade, open frame board design, 11 pins for phono or line amp. New.$ 66
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55384Luxman L-210Integrated amp. Silver, Slim line. Tuner in, aux, phono, two tape ins, dubbing. Complete cleaning. Installed high quality banana terminal connectors for speakers. Nice audiophile design.$ 280
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48773Luxman L-480 integrated ampStereo integrated amplifier, modified by AP with better grounding, power supply updates, super quiet headphone output, and phono circuit optimized for moving magnet cartridge. Treble 2k, defeat, 400; Bass 200, defeat, 400; Subsonic 15Hz, off, 30Hz; High cut 9kHz, off, 15kHz; Dubbing 2-1, source, 1-2; Monitor reverse. Vintage unit in truly excellent cosmetic and electronic condition.SOLD
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16913Luxman M-1114 channel Power Amp, 40 watts per channel. In box with manual, input level controls for all 4 channels. Nicely built very rugged basic design.SOLD
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47583Luxman TCQ0065 DML-2 module11 pins on open circuit board. This is the original substitute module supplied by Luxman. New old stock, two pieces available.$ 88
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52807Marantz 1030Stereo amplifier. Mic, phono, tape, tuner, aux selection. Bass and treble controls. Loudness, tape monitor, mono select. Low use, unit has seen minor water damage on top, but performance has not been affected. Set bias/DC connector. Replaced various low level audio capacitors with higher quality mylar. #8+$ 188
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40264Marantz 1072Integrated Amp, Excellent Design, Unit has scratches on knobs (needs new knobs to be perfect), all serviced, cleaned, excellent condition otherwise. Better circuit phono preamp.SOLD
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27429Marantz MA600Integrated Amp, 2 phono in, tuner in, aux in, 2 tape monito in, 2 independant speaker outs, 5 band EQ, excellent amplifier design - Nice Style. Modified to improve grounding and power supply, unit is all cleaned and servicedSOLD
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55974Marantz MM90005 channel power amplifier. Front L, Front R, Center, Surr L, Surr R. RCA ins with level control. THX ultra. Peak LED indicator for each channel. Brushed black aluminum face. 8/10 condition. Center channel non functioning, minor scratches on top of face and cover has spare parts for channels.$ 300
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41902Marantz Model 10703 band graphic eq, 2 speaker out, preamp in/out. With new speaker relay, input transistors, 2x switch clean/flush, double-up power switching, 2 tape, 1 aux, tuner, phono and mic inputs. Beautiful craftsmanship with timeless design qualities. #9 condition.SOLD
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43258Marantz Model 15 AMPLIFIER BOARD MODULES2 AVAILABLE.$ 30
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39983Marantz PM-7200Integrate amplifier. Remote, Manual, and Box. Excellent modern audiophile build quality design. (modular boards/high quality parts). Input relay switching. 5 line input (1 tape, high quality phono). Basic Bass-Treble Eq. Class A. Mint Condition, Like new.SOLD
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55998Marantz SR4120Aux, CD, Phono, AM/FM, Tape Monitor inputs. Bass, Treble, Balance, Volume Controls. Speaker 1/2/F/P/P.Scan/Memo/FM mode options. 1/4 inch phones jack on face. Black face unit with digital display. Has fully functional remote. Nice basic easy to use stereo. 9/10 condtion. Low hours use, minor scratches on face, fully serviced.$ 148
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Email Us or call (617) 926-8020 for more information about ADA modifications and repairs.
51589Marcon Capacitor 68000 UF 50 WV1990s era. #9 condition.$ 20
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28922Mark 1B SOLD
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27842Marshall 90054-space rack design Stereo power amp, full TUBE design, Audio Pro modified. Designed by Arshall the Guitar amp co. Dual EL 34, coverted to home audio quality hifi amp. Ruggedized, fresh tubes, call for details.$ 780
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46204Marshall Valvestate AVT 2000 foot controllerAVT Stage six button foot switcher and 15ft 15-pin interface cable. Acoustic simulator, clean, overdrive 1, overdrive 2, FX on/off. Excellent #8+ condition, professionally cleaned and serviced.$ 58
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54089Maxi-Mouse 1/4" input jack part9 terminal switching 1/4" jack for input, closed frame design. Condition 8$ 14
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39841Maxi-Mouse Portable Guitar AmpSidewalk Street Performer Guitar Amp, Treated Cone (Latex), w/AC charger. new batteries installed, all switches and controls cleaned, completly serviced, new input jacks installed. excellent cosmetic condition. SN:5903SOLD
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54867McIntosh Mac 1500 ReceiverHigh quality tube receiver. Aux, FM Mono, FM Auto, Phono 1, Phono 2, Tape. Stereo/Mono switch, Tape Monitor in/out, LF/HF Filter Switches, Muting In/Out, Loud In/Out switches. Bass and Treble, Balance L/R, and Volume knobs. Silver Face in wood case. Just fully serviced. FM calibration. Helper caps added. Service history included. Includes owners manual.SOLD
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51642Mepco/Electra 15000mFd capacitorSurplus stock left over from 1980's. Electrolytic, #3110DC153U100, 362-7723, 15000mFd 100wYDC. Five pieces available.$ 16
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49194Mepco/Electra 1500uF capacitors 905-01-04-018Pair of caps. 905-01-04-018, 3186DE153U040BMA2, 1500uF, 40vDC 50v surge, 85 degree C max ambient.$ 22
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41463MR-1240 power amplifier SN 6139th12 channel - 6 zone - 35 watt per channel$ 499
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52414NAD 2200stereo power amplifier, soft clipping circuit, stereo/mono bridging, Japanese built version (one of the best NAD designs), virtually no use time, dual mono design, pre-driver joints re-soldered, check test heat & run perfect, 9+ conditionSOLD
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42626NAD 3020 series 20Inputs for Phono, tuner, tape, and Aux. Headphone out, tone controls, loudness, soft clipping switch, NAD factory upgrade for RF supressor in PSU, ground lift correction, OK phono pre, #8.5 conditionSOLD
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56859NAD 3140Integrated stereo amplifier with many features. Grey face with black knobs. Low use unit that has all service updates; fully serviced and calibrated. Condition: 9$ 180
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48736NAD 3140Intact, good for parts, or can be repaired upon request. Very good condition.$ 28
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50129NAD 3150Very nice stereo integrated amplifier receiver with NAD-authorized updates done by AP, new board soldering, high quality replacement Japanese capacitors, fully serviced and tested. A/B speakers select, bass/treble control, mono select, tape1/tape2/phono/tuner/aux inputs. Very low use time, excellent cosmetics except for tiny rub on upper left corner.SOLD
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27305NAD 3300Unit is in excellent cosmetic condition. 2 speaker channels, bass EQ selection with sweepable 50Hz, 120Hz, and 250Hz ranges. Sweepable treble control with 3kHz, 6kHz, and 12kHz ranges. Tape copy selection with 1 to 2 and 2 to 1 options. Monitor 1 and 2 selection. Back panel connections, phono in with cartridge type selection. Tunier in, vidio in , DC in, Tape 1 and 2 in/out, main in, pre out. Unit needs many parts to repair amplifier sectionContact Us
50281NAD C340Tape 1/ Tape 2, tuner, AUX, Video, CD, Disc, input selectors, bass, treble, tone, balance, volume, controls, high quality phono input, nice basic design, 80 Watt amp, discreet-transistor, high current design amp, missing remote, #8+ condition, minor face rub, re-soldered main circuit to make rugged, long term reliableSOLD
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52334NAD S-200Stereo power amplifier, 200 watts per channel. Nice aluminum face, wow! XLR and RCA inputs. Excellent #9 condition, completely cleaned, serviced, tested with improved internal grounding.SOLD
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52786NAD Series 20cosmetically excellent, condition near perfect, needs repair, all intact, has intermittent amplifier circuit, condition #7$ 20
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26050Niles SI-12306 channel stereo (12 channels) amp or 3 channel stereo bridgeable, 40/80 watt per channel. Near mint condition. $1200 retail.SOLD
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55726Onkyo A-10Integrated stereo amplifier. MC/Phono1/Phono2/Tuner/Aux inputs. Speaker A/B/C/A+B/A+C. Bass, Treble, Balance, Volume controls. Dubbing, Monitor, Subsonic, High Cut, Mode, Loudness, Muting features. 1/4 inch phones jack on face. Silverface unit. 8+/10 condition. Some lettering worn off and some dust inside.$ 420
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28472Onkyo Integra A-8170 integrated stereo ampUnit in excellent cosmetic condition. Unit has tuner,phono,cd,cd direct,vcr,vdp/vcr i/o, vid mon out. also has mc/mm selection for phono cart. $ 300
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28849Parasound HCA-1200200W per ch., excellent relay protection circuit, modified to improve heat stability and ground loop problems.$ 380
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52818Parasound HCA-750Aaudiophile quality amp, dual power supply, super low noise, 100 watts, input levels, relay breakers, top build quality, 3 space rack design, black, calibrated, tested perfectly, condition 9+SOLD
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42962Peavey Classic 20 15-watt all tube guitar amplifier, compact design with tweed cover and original 12" speaker. Super loud! Circuitry in excellent #9 condition; tweed in #7 condition with a few marks and stains. SOLD
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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.
24731Peavey PA-100Mixer Amp, Combo Design - Ch 1-3 for keys, bass, etc., Ch 4 is Hi Gain for Guitar, Spring Reverb$ 150
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28343Phase Linear model 200 power ampvarious scratches to face plate. unit is excellent electrical condition, no repaires done to unit, but fully bench tested, slight modification made to powersupply board. rated at 150 watts per ch. at 8 ohms. SOLD
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49192Philips 44000uF capacitors 318GEH443U075APA1Pair of capacitors. 318GEH443U075APA1, 44000uF, 75vDC 95v surge, 85 degree C max ambient.$ 40
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26458Pioneer A-60 Stereo Amp110W per channel, true high-current design, can accomidate wide use of speaker loads, beautiful cond silver-faced amp!SOLD
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27819Pioneer AV-1200Integrated Amp, 100-watt per channel, dynamic range expander, independent A/B speakers, 3 Video-ins. Well-built serviceable unit.SOLD
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44155Pioneer SA-1000Hi fi stereo amplifier. 8 inputs. Speaker, Mode, Monitor, and Filter switches. Treble, Bass, and Volume controls. Bronze front panel. #7+ condition with an obvious scratch on top metal edge, excellent case. Professionally cleaned and serviced. (includes one pair of Pioneer speaker connectors)$ 288
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43873Pioneer SA-420Silver face, slim line design. Integrated amp, 3 inputs, RCA preamp out. 32watts per channel. 2 speakers - A or B only. Completely cleaned and professionally serviced with new output transistor. #7+ condition with some scratches around edges. Good condition face knobs.SOLD
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56363Pioneer SA-420Basic integrated amp. Phono, tuner, aux, tape in. Silverface. Excellent basic build quality. 30 watts channel, headphones. 2 independent speakers. Minor scuffs at edges. Cleaned, tested OK, low use. 8+ condition.$ 110
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56864Pioneer SA-5200Stereo integrated amp with silver face and wood sides. Ins: Phono/Tuner/AUX 1/AUX 2; Controls: Treble/Bass/Volume; Features: Speaker AB/Tape Monitor/Loudness/Mono/Stereo. Low use unit with upgraded capacitors, fully serviced and calibrated. Condition: 8+$ 128
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27021Pioneer SA-6500 IIStereo Amplifier, Silver faced unit black top, Lights Replaced, Cleaned and Serviced.SOLD
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42941Pioneer SA-7800 Stereo AmplifierPhono, tuner, aux, high quality phono inputs. With balance, bass, treble controls. 2 tape monitor. Front panel also has muting, loudness, subsonic filter and tone switches. 65 watts per channel with 2 independent speaker switches. All controls and switches, set bias and dc offset, resoldered circuit board where required. #9+ condition.SOLD
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51425Pioneer SA-9100Integrated amplifier with three speaker outputs, two tape inputs, two phono inputs, two aux inputs, mic input, and tuner. Two position low/hi filter, three position level switch. All original and very low use time, carefully cleaned and serviced. $ 340
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25170Pioneer SA9500Int ampContact Us
52547Pioneer Spec 4intact but in #7 condition. Parts available: meters, $34; face with handles, minor scratches (#7 condition), $22; one good amp board, $68; filter caps, $18 eachContact Us
17246Pioneer SR-303Stereo reverb amp, blue "tunnel" display windowSOLD
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49797QSC power switchesTwo power switches: JC1-A3-BB-A and JC1-S-A3-AR-01-W-A. 15amp, 250volt, 2"x2"x.5", black color. New old stock.$ 16
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45940QSC 850270 watts per channel. Very low use time, very good #8+ condition with some minor scratches on bottom. SOLD
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46381QSC Audio PL-1 octal limiter8 pin octal limiter module. Very good #8 condition.$ 18
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46198QSC Audio XL-1 crossoverTwo way octal crossover, 8 pin. Very good #8 condition.SOLD
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90009QSC PLX 3002Pair available, contact us for price.SOLD
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33199QSC PLX-1202Lightweight, switching mode amplifier, 221b$ 440
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33198QSC PLX1202Lightweight switching pwr supply design, road case available, please inquire!$ 550
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33200QSC PLX1602Lightweight switching power supply design, new condition! New lower price.$ 540
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49798QSC power switchPart JC1-A3-J C-97. 20amp, 250v, 2"x2"x.5", gray color. New old stock. Three pieces available.$ 16
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90006QSC RMX 1450 $ 315
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90007QSC RMX 1850 $ 405
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90008QSC RMX 2450 SOLD
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90005QSC RMX 850 $ 225
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43847QSC RMX-1850HD2 channels, banana speaker connectors, 1/4" and XLR inputs, 15amp breaker. With AC cord, manual, original box. #9 condition with minor light scratches on top paint. Very low use.$ 375
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48908Quantum 25r TwinSmall 30watt combo amp with 6" dual speakers. Features overdrive controls, spring reverb, carpet cabinet. AP installed two new speakers, one heavy duty "thick sound," one vintage alnico "thin cone lead" sound. Two different drivers to create a very "high fi" little amp combo! Professionally cleaned, serviced, tested, with board resoldered for better reliability. Overdrive sound is not great, but very nice acoustic fidelity! Very good #8+ cosmetics.$ 180
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55223Rane HC 6Headphone amplifier; 6 channel, Mono/Stereo switch on master control, balanced L/R Master input, Stereo 1/0 on rear panel. *Unit has power supply in chassis, better version, no rack rash, low use time, 9+ condition.$ 140.00
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55201Rane HC-66 Channel Headphone Amp 1/4 inch outputs/ volume controls 1/4 inch TRS in/out for each channel Master Control with mono/stereo switch. Requires Rane Outboard Power Supply (not included) LED Signal Indiicators #8 Condition. Minor bends in rack ears.$ 100
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29239Rane HC6headphone amp, excellent condition, demo unit, with improved grounding and power supplySOLD
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18584Rane HM42Mixer headphone amp, 4 channel stereo unleveled mixer to 2 headphone separate level out - modified ground circuit - very quiet, excellent headphone amps.Contact Us
46431Realistic MPA-20Mono 20watt mixer and amplifier, very compact and can run on 12v battery! Aux/phono/two mic phone input connectors. Also works well as a guitar amp to mix in effects! Excellent condition, professionally cleaned and serviced.$ 88
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40384Realistic MPA-403-channel, small industrial/performer unit, two mic 1/4 inch inputs, one phono or aux select input, 3-band graphic EQ, mono output$ 110
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50081Realistic MPA-4035watt PA amplifier with two mic inputs and aux/phono inputs. Transformer output stage and nice EQ section good for voice or guitar. Excellent condition.$ 80
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42651Realistic MPA-45small compact mixer amp, 3 band eq section, 2 mic phone Ins, basic 60 watts PA system with a very rugged design$ 90
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27904Realistic SA-2000Great Styling and wood top and sides, Cosmetically very good, A classic integrated amp, Power Meters, Perfect Loudness Controls, Individual volume sliders. Complete clean and service.

All our machines have been serviced in our shop to be guaranteed functioning and reliable well into the future. They are sold with service logs explaining the work performed on each individual unit. It is important to hold onto these service logs as they will provide valuable information to any tech servicing the machine in the future.
SOLD
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50741Revox B-750 parts unitIntegrated amplifier, 2 tape inputs, 2 headphones, Bass/presence/treble controls aux in/ tuner/ 2 phono inputs (phono/impedance loading with phono sensitivity switch). Unit has seen very minor water damage; 1 channel is out, face plate and knobs very good condition (missing loudness switch cap), case is rough-missing front fold down panel. Unit is good for boards knobs, one amp channel. *cleaned and lubed*Contact Us
28147Roland JC-120Jazz Chorus 120 combo amp. Excellent cosmetic condition. Completely cleaned and checked out. This version is at least mid period or later. Very low use (in home environment only). Great fidelity and clarity, any good effects will sound great through this. Very well done Roland equipment, in excellent #9 condition.$ 488
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53145Rolls PM52passive headphone tap, power amp loop, mono/stereo selection, 2 headphone out, condition 10$ 32
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32700Rolls RA62headphone amp, 6 separate headphone outs, each channel has individual level control and insert, main in and stereo in, as new in box$ 148
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52822Rotel 970BX Integrated AmpRA-970BX. Slimline, black. Basic Integrated amp. No phono in. CD, 2 AUX, 2 Tape, Tuner. Bass/ Treble controls. Cleaned and re-enforced. Connections, 60 Watts per channel. Comes with box and manual. #9+ condition. SOLD
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40883Rotel RA-820 BXIntegrated Amp, 40 watts channel, Slim line design, Tape/tuner/CD/Phones, high quality phono preamp, Note: headphones do not disconnect main speaker outputs when in use, Cosmetically slightly worn (lettering): 7 out of 10, Electrically excellent: 9 out of 10SOLD
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41697Rotel RB-980BXStereo power amplifier. Soft limiting, bias set/calibrated, all board soldering touched up, switches all cleaned. 80 watts per channel at 8ohms, straight amp. SOLD
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57278Sansui AU-101Basic integrated amp; plays only 1 set of speakers. Inputs: Phono/Aux/Tape In/Mic In. Rugged design and slightly "tubaphone" sound character. Can operate on 220/240/117 volts. Wood case edge is damaged, but unit has seen low use time. All control switches cleaned. Condition: 8$ 100
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55363Sansui AU-G77XIntegrated amplifier; disc, tuner, tape 1, tape 2, aux inputs, MM, MC, CD disc selector, 5 band equalizer, high/low filter, loudness, headphone out, A, B, A+B speaker select, REC selector. 9 condition.$ 280.00
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45122Sansui AU555 Integrated Amplifier 2 aux in, 2 phono in (low noise spec), tape in/out, amp in/out, 2 independent speaker outs, dampening control switch for amplifier. Very nice cosmetics, clean inside and out; unit has very low oxidization on switches and is fully cleaned and calibrated. Compatible with 110, 120, 220 and 240 VAC. Excellent #9 condition. New lower price!SOLD
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27708Scott 299c AmplifierH.H. Scott 299c Amplifier. Mostly fresh tubes, Lots of P.S. updates, decent cosmetics, (no dents, minor scratchin at edge of faceplate, all lettering intact)SOLD
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Customers outside of the US, please note that international shipping can be costly. Take a look at our shipping policies for more information and estimates of prices and shipping time.
43319Scott LK-72 StereomasterPower amplifier. This unit has a bad tube and a bad fuse holder, otherwise a good machine for parts or hobbyist use. Contact us for more information.SOLD
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50412Scott Stereomaster LK-60Good, intact unit for hobbyist use, in need of replacement capacitors.Contact Us
50414Scott Stereomaster LK-60Solid state stereo amplifiers Scott kit, Tape, Phono, Tuner, Aux, Input Selections, bass, treble, balance, controls, wood case #8+ unit all knobs nice, all phono, input caps and transistor upgraded, unit probably could be upgraded with new EQ board capacitor $ 300
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28431Sherwood HP1000 integrated amp.silver face unit in excellent cosmetic condition. modified updates to power supply, ac switch and amp module. unit has watt meters with range attenuaters. unit has phono 1+2,tuner,aux 1+2,tape 1+2 inputs. completly cleaned and serviced by audio pro. $ 360
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51644SIC SAFCO Felsic Co 38#727105 381S83242F, 22000uF, un 63 Vcc, up 76 Vcc, two pieces available.$ 14
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23047Sony TA-AX240W x 2, New Power IC Pack, Excellent Quality Circuit Mechanincal Design, Nice Audio Quality$ 110
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28251Sony TA-AX44Stereo int amp, serviced and tested$ 120
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38491Sound CityAmp HeadSOLD
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48598Specialized filter capacitorsWe have many high quality, compact filter capacitors available. 6800uf, 100v, 2.5" diameter by 1.5" height. New old stock with scuffs from storage. Many other types available!$ 14
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54764Sprague36D series powerlytic. 75VDC, 59000uF electrolytic power supply capacitor. For Phase Linear Model 400 amplifier, fits perfect, original. Must use existing hardware for installation. Pair, 1992 manufacturing date, tested good, #9$ 20
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20678Sumo 310 Polaris100 Watt per channel class A/B power amp, High quality high-current mosfet amp, runs true class A up to about 20 watts, very good condition black rack mount.SOLD
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40395Sunn SPL-7000Sunn SPL-7000 700 watt bridged, 350 watt at 4 ohms stereo, 250 watt at 8 ohms stereo. Good mechanical condition, banana plugs a bit damaged but functional. Balanced and unbalanced inputs.SOLD
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42839Tascam MH-40Multi-Headphone amplifier. RCA and 1/4" inputs. 2-space rackmount. 4 1/4" headphone outs with balancing level controls. RCA in or 1/4" separate left/right levels. All controls and switches cleaned. Very low use, excellent #9 condition.$ 120
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52657Techics SU-8600face plate, all letters intact, nice shine and clean but has scratches at the 4 corner screw holes and mode switch, better than most, condition #7$ 18
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50270Technics MUW150-3 transformerVTP09C2-12G. With lead wires. Excellent condition, tested.$ 22
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38973Technics SE-9060Pro rack mount amplifier. Excellent build quality. Condition is like new, impeccable with box and packing, all serviced and cleaned and mechanically and cosmetically in top condition.SOLD
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44598Technics Stereo SystemIncludes stereo amp SE-CH515D, tuner and sound processor ST-CH505, and 3 disc CD changer SL-CH515, all professionally cleaned and serviced in tip top #9 condition! Includes remote control. Plays damaged discs and CD-R's well. EQ space selection, Karaoke mode, v.bass mode. What a value! $ 220
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24103Technics SU-G50Int amp, brown face, 2 tape loops, 70W per channel, 1 of 2 piece set, Well built, Reliable.$ 130
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55690Technics SU-G70Integrated amp, CD/VCR1/VCR2/tape/tuner/phono inputs, A/B & surround outs. Dolby surround with charcoal face with digital display, unit has been fully serviced, cleaned, and calibrated, #8 condition$ 180
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23853Technics SU-V98Int amp, w/ remote, Solid Integrated Amp, 60 watts, good basic unit. 2 tape loop, 1 cd in, 1 tv in, tuner in, phono in, pe in, main outs - with ST-K50 tuner/brain. Both units $200$ 200
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55284Technics SU-Z65Stereo integrated amplifier. Grey/Black, slim design. Fluorescent power meters, analogue controls. Phono/tuner/aux & (2) tape loops. 240 vac unit with 3 pin power cord. #9 condition, box & packing. $ 130
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55118Technics SU-Z750Stereo integrated amplifier. Main/Remote speaker selectors. 50 watts per channel. Bass/Treble/Balance/Volume faders. Tape1/Tape2 monitor, CD/Tuner/Phono in selector. Loudness control, 1/4 inch phones jack. Charcoal face unit with LED backlit display (nice). Hefty power supply breakout board. Fully serviced, minor haze of corrosion switches.$ 140
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45832TOA 900 SeriesFour input powered mixer. 2 XLR, 2 RCA, and EQ loop. Bass/Treble/Volume controls. Professionally cleaned and serviced. Excellent #9 condition.$ 140
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51634Towa Electrolytic Capacitor MLS-Z CE33B 15000uF80v power supply capacitor, screw post mounting (1+1/8" c to c), 2.5"w x 3+1/8"h. 1987 production, excellent condition, two pieces available.$ 16
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49799Various toggle switchesVarious brand toggle switches (Carling, Marquardt, Arrow, Alps, C&K, Vid, Und Lab, McGill, Becker, etc) for Dynaco, Hafler, Sony, and other vintage products. New old stock. Average price is $4. Please send us a picture to request a part.$ 4
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Email Us or call (617) 926-8020 for more information about ADA modifications and repairs.
48623various types of capacitorsWe can supply many types/values of capacitors. 2200uf 80wv Nichicon $4, 1000uf 50v ELNA $3, 2000uf 100v ELNA $8, 10000uf 63v Nippon Chemicon $14, 6800uf 80wi Daewoo $6. Many types, some new, some salvaged and tested for vintage Pioneer, Marantz, Kenwood, Sansui, etc. Call directly for specific values.Contact Us
53146Yamaha A-1000Stereo integrated amplifier. Auto class A. Direct Signal. Bass and treble controls with turnover equalizer for high and lows. Moving coil input. MM and MC input with cartridge loading switching. Dual power supply. Record while listening. -very low use time. Did major board soldering and rugedization.SOLD
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27805Yamaha A56080W/ channel slim aluminum brush face style very nice design. Matching T560 tuner available.SOLD
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53033Yamaha AVX-100Ustereo audio/video amp, uses RCA\s-video in, 8 stereo inputs with 2 tape dubbing, phono in, in/out processor loops, 3 band EQ, 60 watts per channel, well built, serviced, DSP processor, can add in imaging effect for front channel (at a subtle level), no remote, condition 8+$ 180
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56134Yamaha CA-600Natural sound stereo amplifier. Silverface with wood cabinet. 1/4" phones jack on face. Slight bend in rear plate at "B" speaker terminals. Fully serviced and calibrated. Has original box. Low hours use. 9/10 condition.SOLD
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45877Yamaha CA-600 partsComplete machine, electronics condition unknown but probably does need real repair. Some wear to faceplate.$ 34
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54421Yamaha CA-800Cabinet #9, $26. Knobs #9, $6 to $8 each. Boards and parts. Whole unit could be use to build one perfect unit from two. Unit intact, needs serious amp fix on one channel. Contact Us
54289Yamaha CA-800 AmplifierYamaha CA-800 Amplifier, 1 channel has major failure. Natural sound stereo amplifier, 2 aux in, tuner in, 2 phono in, mic in, A,B,A+B Speaker selector, tape selector, tone defeat switches normal, Class A operation selector, high filter, low filter, silver face. Shorted output on left channel, good face, knobs or for repair.Contact Us
27821Yamaha CA800Integrated Amp, independent switching, A/B tape dubbing, 2 phono inputs, RFI, power supply improvement update. 1 channel amp repaired. A little worn but AOK.Contact Us
25160Yamaha DS1 E1000Surround amp, w/remote (nice remote - rapid easy access for setting all levels) 5 channel pro logic dolby (best of this type not AC3) Unit does amazing reverbs/DSP sound fields the best quality true stereo reverbs. Independant output for reverb or use internal amplifier (well designed 55+watt amplifier for all channels - 310 watts total) Manual supplied is for DSP E200 (similar function. Complete clean and service.$ 225
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52491Yamaha DSP-A2070Digital sound field processing amplifier. 5 channel Dolby Pro Logic DSP with jazz, concert hall, theater, church, and rock presets. Aux, VCR 1/2/3, TV, tape, tuner, CD, and phono inputs and composite and s-video video inputs. Excellent #9 condition, low use time, cleaned and serviced with ruggedized power supply soldering. $ 200
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54922Yamaha M-4Natural Sound Stereo Power Amp. Audiophile quality !!!. Speaker A/B select. Output level meter with overload indicator. RCA left/right on rear of unit, AC/DC mode switch. Level controls, push style speaker connectors, ground connection. Ruggedly built blackface unit. Fully cleaned and calibrated, small dent on left bottom, relays rebuilt. Case #8+, electronics #9SOLD
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51257Yamaha M60Super amp, 200watt, 4ohms, 3 speaker switch, with level controls and meters. Dual power supplies with star ground design. Fully serviced by AP, resoldered board to make more rugged, low use hours overall. Very good condition with some obvious scratches on top and one speaker knob missing, face is excellent.SOLD
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51656Yamaha Nichicon 40127 33000uF filter capacitorPower supply filtering cap, 33000uF 50wV, 2" diameter by 2+5/8" height. Includes mounting bracket. Excellent condition. Pair available.$ 22
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56971Yamaha P2075Rack mount 2 channel amp. Rugged design, 2 RU blackface unit with rack rails and LED signal/clip indicators. Inputs: 1/4", XLR; Channel A/Channel B level controls. Condition: 8-$ 200
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49467Yamaha P2201Two channel power amplifier with 3-pin XLR male and female inputs. 120v, 600watts. One original channel module works correctly, the other has been repaired but still has minor problem. Bargain price! Please call for details. $ 120
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52457Yamaha PDX-11for IPod & IPhone, remote control included, ac/battery operation, a/c adapter included, new in box, black$ 110
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52458Yamaha PDX-11for IPod & IPhone, remote control included, ac/battery operation, a/c adapter included, new in box, white$ 110
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52178Yorkville AudioPro 3000450 watts per channel (600 watts at 4 ohm), double rack space unit 16" deep. Side fan. 1/4" and XLR inputs, banana outputs. As new, shop demo unit.$ 480
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Contact Information

Our hours are -

Monday (12 Noon - 6pm),
Tuesday by appointment only,
Wednesday through Friday (11am - 7pm),
and Saturday from (11am - 3pm)
We are closed on Sundays.

** Employment Opportunity - Technician Needed (2012-10-12) ** We are currently looking for a Technician, with experience in Audio. Inquire Here or call us directly for more details.

** Shipping Guidelines Update (2012-10-12) **
Please do not ship any packages to us using the Fed Ex Home Delivery Service , the packages will not arrive. They only attempt to deliver during our off hours and do not leave tags. We have tried several times to remedy the situation but they seem to have an unusually hard time with the concept. For more details about our shipping policies Read Our Shipping Guidelines Here or call us directly.

** Return Policy: **
Please make sure the part # in our inventory is exactly the one you want. The manufacturers made many variations of similer parts. If you are in doubt, it is best to attach a photo of exactly what you need.

** Condition of Audioproz items: **
Unless described otherwise in the item listing, all items have been cleaned, serviced, and tested for correct functionality on a professional test bench. Items listed as parts are sold as is.
 
Phone
617-926-8020
FAX
617-926-8707
Postal address
779 Mt. Auburn St., Watertown, MA 02472
Electronic mail
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Friday, October 24th, 2014  
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