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  


Please be aware there is a minimum $4-$6 to ship any part. International orders will be $14-$16 to ship for anything larger than an envelope. Shipping costs are non negotiable, so please, PLEASE do not ask for a part, or for us to search for, or quantify a part if you cannot pay for the shipping.


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).

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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.

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Email Us or call (617) 926-8020 for more information about ADA modifications and repairs.


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.

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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.

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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.

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


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. 

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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

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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.


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