Audio Proz Service and Sales


Yorkville CA1

Audio Proz Inv #: 90116

Fixed Installation power amp / mixer – 180 watts at 70V or 4R

$ 299  Contact Us  

Yorkville AudioPro 3000

Audio Proz Inv #: 52178

450 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  Contact Us  

Yorkville AP2020

Audio Proz Inv #: 61483

audiophile grade amplifier, super low noise, 2 rack space amp, old school super rugged design, level controls, bridging, function lights, XLR and phone in, Speakon output, low use, all checked, perfect, needs face clean, #9 condition

$ 400  Contact Us  

Yamaha P2201

Audio Proz Inv #: 49467

Two 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  Contact Us  

Yamaha P2075

Audio Proz Inv #: 56971

Rack 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-

$ 240  Contact Us  


We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


Yamaha MX-590

Audio Proz Inv #: 63326

Power Amplifier 3/4 size (11" wide). Champagne face gray metallic top and sides. Very high quality audiophile design, 50 watts per channel. RCA L/R input (1) Pair only outputs. Excellent basic amp, low use #9 condition 

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Yamaha M35 4 Channel Amp

Audio Proz Inv #: 71169

30 watts per channel, nice look seperate left / right level controls. RCA inputs , push connector output conns, Low use, #9 condition

$ 188  Contact Us  

Yamaha M-40

Audio Proz Inv #: 57602

Power Amp 3 speaker switching. Lubed/cleaned speaker inputs. Cleaned and dusted internal units. #9 Condition (Low use).

SOLD  Contact Us  

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Yamaha M-35

Audio Proz Inv #: 63511

2/4 Channel power amp. 35 watts per channel. Left and Right speaker output level controls. Fully serviced, low use, refurbished relays. #8+ condition

$ 208  Contact Us  

Yamaha G50 112II

Audio Proz Inv #: 63046

Guitar amplifier, w/distortion control mods, spring reverb, 3 band EQ, 2 ch, foot pedal (reverb, ch, EQ) Amp  comes with vinyl cover(Black)  Cleaned and serviced. Unit plays loud, Jazz tone, high quality and bright sounding! #9 Very Nice condition 

$ 285  Contact Us  

Yamaha DSP-A2070

Audio Proz Inv #: 52491

Digital 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.

SOLD  Contact Us  

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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.

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.


Yamaha CA800

Audio Proz Inv #: 27821

Integrated 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  Contact Us  

Yamaha CA-600

Audio Proz Inv #: 56134

Natural 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  Contact Us  

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Yamaha CA-1000

Audio Proz Inv #: 60862

Natural Sound Stereo Amplifier. Normal/Hi/Lo filters, bass, treble, balance, tape, monitor, headphones jack. Speaker switches - A, B, C, A+B, A+C. Inputs - Aux 1, 2, tuner, phono 1, 2, mic. Low use, nice face & cabinet. All maintenance performed. Modified to defeat internal Class A switch, which is a weak design problem that must be corrected. #8+ condition.

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Yamaha AX-596

Audio Proz Inv #: 63471

Aux, MD, Tape, CD, Tuner inputs. High quality Phono in. Audiophile quality amp preamp in/out. Digital input switch relay for each speaker. 60-80 watts per channel. This is a very serviceable unit! With remote. Low use #9 condition

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Yamaha AVX-100U

Audio Proz Inv #: 53033

stereo 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  Contact Us  

Yamaha A-S500 Integrated Amplifier

Audio Proz Inv #: 63695

Nice Basic Audiophile Grade Unit ! Individual Relay Operated Speaker Outs. 85 x 2 WATTS  RMS !.  5 sets RCA in's (2) Tape loops, (3) line & (1) phono (optional I-dock port)  sub woofer out. #9 condition Black with Remote Control manual and Box, no packing.

SOLD  Contact Us  

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We have been selling and repairing professional and consumer audio equipment for over 40 years. (Read some of our customers testimonials here)

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.


Yamaha A-520

Audio Proz Inv #: 70916

Integrated amplifier (1985 vintage) Black face panel. 75 watts per channel. Audiophile grade amp and parts. Has external RCA outs! Speakers A/B Bass Treble + Balance controls. Inputs: Tape 1, 2, Aux, Tuner, CD, Phono w/ switchable mm/mc. Variable loudness. Resoldered grounds + cleaned controls and switches. Good condition all clean. Super quality amp! #9 condition. 

SOLD  Contact Us  

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TOA 900 Series P-906MK2

Audio Proz Inv #: 71607

(Mono unit, industrial style Amp) 1 XLR input, 1 Line input with Terminals. 100 Watt 4/8 ohm, 70v and 25v outputs. Condition #9

$ 168  Contact Us  

TOA 900 Series

Audio Proz Inv #: 45832

Four input powered mixer. 2 XLR, 2 RCA, and EQ loop. Bass/Treble/Volume controls. Professionally cleaned and serviced. Excellent #9 condition.

$ 140  Contact Us  

Technics SU-Z65

Audio Proz Inv #: 55284

Stereo 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  Contact Us  

Technics SU-V98

Audio Proz Inv #: 23853

Int 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  Contact Us  

Technics SU-G90

Audio Proz Inv #: 63287

Stereo integrated amp, 90 watts per channel, Black face plate, Big volume knob. Phono, Tuner, Tape, TV, and DAT inputs. Prefer to sell with Tuner Technics ST-K50 INV#43678 (will discount price). Speaker B switch interrupts speaker A. Fully serviced, Low use time, needs power cable. #9 condition

SOLD  Contact Us  

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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.


Technics SU-G50

Audio Proz Inv #: 24103

Int amp, brown face, 2 tape loops, 70W per channel, 1 of 2 piece set, Well built, Reliable.

$ 130  Contact Us  

Technics Stereo System

Audio Proz Inv #: 44598

Includes 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-Rs well. EQ space selection, Karaoke mode, v.bass mode. What a value!

$ 220  Contact Us