Audio Proz Service and Sales


Accuphase E-202

Audio Proz Inv #: 42472

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  Contact Us  

Contact us about similar items or replacement parts.

Acurus DIA 100 MkII

Audio Proz Inv #: 71892

High quality "audiophile" integrated amp. Passive pre-amp. High quality parts. (2) tape loops. (4) line (stereo) inputs. AC cord in box. Banana post speaker connectors. All cleaned and serviced. **NO PHONO** Black face. Grey silver knobs. Condition 9

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ADA Microfet 100

Audio Proz Inv #: 28422

A/B channel volume controls, Presence control, Peak Levels (LED), 1 rack space, 1/4" inputs, unit as new in plastic

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Adcom GFA 545 II

Audio Proz Inv #: 63474

Nice Basic 80 watt amp (has Adcom factory circuit update). Low use #9 condition. All calibrated.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ADCOM GFA 6000 Multi-Channel Power Amplifier

Audio Proz Inv #: 72819

Comes with owners manual. Speaker outputs: Center, Left Rear, Right Rear, Left, Right. All outputs have individual level controls. Independent RCA inputs for each channel. High quality blue boards with high quality capacitors throughout unit. Excellent, rugged board soldering. Very low use unit, incredibly clean cosmetically & Fully functional. All controls and connectors are clean and undamaged. All channels work excellently. All lights work and bulbs are in good shape. #9 condition.

SOLD  Contact Us  

Contact us about similar items or replacement parts.


We are presently operating on an APPOINTMENT ONLY basis. Please call us first at (617) 926-8020 to schedule an appointment before you come into the shop for repairs, rentals, product recommendations, consultations, or anything other than minor purchases.


ADCOM GFA-5300

Audio Proz Inv #: 64288

2  channel Power Amp  80 watts @ 8 ohms. RCA in's , Banana Post out's.  Hi Quality very well designed unit, low use  #9 condition

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Adcom GFA-535 II

Audio Proz Inv #: 63178

Top quality audiophile design dual power supply. 60 watts per channel. Slim line black, calibrarate test ok, low use #9 condition

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Adcom GFA-535 power amp

Audio Proz Inv #: 28213

Excellent cosmetic condition. Speakers A/B selectable. RCA inputs 60watts/ch at 8 ohms, 100watts/ch at 4 ohms. Serviced and bench tested.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Adcom GFA-7300

Audio Proz Inv #: 34317

5-ch Amp

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Adcom GFA-7400

Audio Proz Inv #: 70841

5 channel power amp. RCA inputs / channel. 5-way banana binding post speaker out. 12V DC trigger (on / off) input. Unit has minor problem - distortion LED front panel indicator light falsely lights, so was disconnected on channel 4. Amp has no problem. Test run is all perfect. Low use. Condition 9

$ 388  Contact Us  

AIR TIGHT Model ATM-3

Audio Proz Inv #: 61718

Tube design Mono block Power Amplifier  (SN: 09209)  Beautiful Silver brushed aluminum face with white VU meter, attenuator control, and 7 position bias control. RCA inputs , 2-4 Ohm & 6-8 ohm  output posts. (no tubes supplied in this unit) Fully shop serviced, clean and calibration. Excellent condition cosmetics #8+ (few very minor top & side scuffs)

Contact Us  Contact Us  


We are a very different kind of shop. To help ensure a smoother experience please read our letter about our current shop policies.

We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


AIR TIGHT Model ATM-3

Audio Proz Inv #: 61689

Tube design Mono block Power Amplifier  (SN: 09209)  Beautiful Silver brushed aluminum face with white VU meter, attenuator control, and 7 position bias control. RCA inputs , 2-4 Ohm & 6-8 ohm  output posts. (has working tube set installed mostly for demo purposes, customer may want t install new set) Fully shop serviced, clean and calibration. Excellent condition cosmetics #8+ (few very minor top & side scuffs)

Contact Us  Contact Us  

Akai AM 2400 Integrated Amplifier

Audio Proz Inv #: 61339

Great basic design. Wooden case walnut simulated. Variable turnover. Bass 400/200 hz/ Treble 2.5 khz/5khz. Hi/low filters, muting. 2 tape inputs/dubbing. Phono tuner aux. New relay/power supply updates/new caps on front end. Missing handles w/shadow on front. #7 

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Akai AM-32

Audio Proz Inv #: 59021

Stereo integrated amplifier AM-32. CD, phono, tuner, AUX, DAT/tape 2 inputs. Only 220V/50hz input. Updated to new 16 amp relay. Cleaned, lubed all switches, knobs, buttons. Ruggedized board soldering. 8+/10 condition, low use, minor scratches along top but in excellent condition.

$ 258  Contact Us  

AKAI AM-U03

Audio Proz Inv #: 64216

DC Stereo Integrated Amplifier. Installed R.F.I input protection caps on phono input. Unit has updated drive STK I.C. Unit has excellent designs of circuit board foils for ground shielding and reduced audio signal crosstalk. Complete service, updated relay. Unit has seen very low use time, unit has dual mono powersupply. High quality phono design. Tested, fully functional. Light signs of use on faceplate. Top & Bottom panels in excellent condition. Use 18 gauge wire for audio out. #8+ condition.

$ 328  Contact Us  

Alesis Microcue Amp

Audio Proz Inv #: 53135

2 stereo inputs, stereo line out, 2 headphone out, 9 volt power supply provided, low use, condition #9

$ 88  Contact Us  

Alesis RA-100 100 watt amplifier

Audio Proz Inv #: 58602

Basic design. Audiophile quality. Level control. Basic mods to reduce RFI and hum noise in audio. 8/10 condition (minor cover scratches). With Box.

SOLD  Contact Us  

Contact us about similar items or replacement parts.


We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock.


AMP KD-400

Audio Proz Inv #: 53124

400 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  Contact Us  

APT 1

Audio Proz Inv #: 61098

The APT 1 Power Amplifier Owner's Manual. In like new condition. Includes schematic. #9.  

$ 12  Contact Us  

APT AMP 1

Audio Proz Inv #: 70548

120 watt/channel. Level III mod update - FET update Circuit / All audio and power supply caps upgraded / Regulator D51 update. Super quiet. Low Use (Face has very minor ding at edge.) Condition #9 We offer this Level III upgrade service see here: https://www.audioproz.com/AP.php?Article=64

SOLD  Contact Us  

Contact us about similar items or replacement parts.

APT Power Amplifier 1

Audio Proz Inv #: 71498

High quality basic power amplifier done correctly. Features Audio Pro Level III Update. Upgraded - all Power Supply caps, all audio caps, new relay, updated DC servo circuit and relay timer circuit . Very low use unit. Has later version Rev 4 board. #9 condition

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Apt Power Amplifier 1

Audio Proz Inv #: 70843

Serial number: E03924. Level III Mod - Upgraded: all P.S. caps, all audio caps, relay, relay drive circuit, amplifier EQ circuit, DC servo circuit. Condition 9

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ART SLA- 2

Audio Proz Inv #: 62443

Stereo Power Amp, 200 watt per channel - Single rack space  Low noise, high current design, Modified with special internal shield for super low noise, also special bias check for stability. rear cooling fan, XLR & phone inputs. (fan can be made quieter) As new warranty with Original Box packing, (used 1-2 rental) #9-

$ 368  Contact Us  


APT 1 Amplifier Upgrades and Repairs Technical Information: Read more about it here.


ART SLA-1

Audio Proz Inv #: 60156

100 watt, rack mount. Unit has quieter version fan by design. Bias, hum, noise is exceptionally low. Audiophile version spec. 10.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ART SLA-1

Audio Proz Inv #: 55590

Single 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+

Not For Sale  Contact Us  

Contact us about similar items or replacement parts.