Audio Proz Service and Sales


Pioneer SR-303

Audio Proz Inv #: 17246

Stereo reverb amp, blue "tunnel" display window

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Rane HM42

Audio Proz Inv #: 18584

Mixer headphone amp, 4 channel stereo unleveled mixer to 2 headphone separate level out - modified ground circuit - very quiet, excellent headphone amps.

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Sumo 310 Polaris

Audio Proz Inv #: 20678

100 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.

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Sony TA-AX2

Audio Proz Inv #: 23047

40W x 2, New Power IC Pack, Excellent Quality Circuit Mechanincal Design, Nice Audio Quality

$ 110  Contact Us  

H.H. Scott 499

Audio Proz Inv #: 23112

Quadraphonic amp, phenomenal condition

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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.


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-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  

Luxman 5M521

Audio Proz Inv #: 24128

Silver 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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Peavey PA-100

Audio Proz Inv #: 24731

Mixer Amp, Combo Design - Ch 1-3 for keys, bass, etc., Ch 4 is Hi Gain for Guitar, Spring Reverb

$ 150  Contact Us  

Pioneer SA9500

Audio Proz Inv #: 25170

Int amp. We do not have one for sale presently, but we can supply service and parts for this unit.

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Harman Kardon PM650

Audio Proz Inv #: 25266

Silver faced unit high current int amp no tuner, 80 W per channel, Excellent basic integrated amp.

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


Harman Kardon Citation 22

Audio Proz Inv #: 27014

Super 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.

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Pioneer SA-6500 II

Audio Proz Inv #: 27021

Stereo Amplifier, Silver faced unit black top, Lights Replaced, Cleaned and Serviced.

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Crown D150

Audio Proz Inv #: 27050

Older 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 condition

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Marantz MA600

Audio Proz Inv #: 27429

Integrated 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 serviced

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Behringer HA-4000

Audio Proz Inv #: 27522

High 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  Contact Us  

Scott 299c Amplifier

Audio Proz Inv #: 27708

H.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)

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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.


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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Marshall 9005

Audio Proz Inv #: 27842

4-space rack design Stereo power amp, full TUBE design, Audio Pro modified. Designed by Marshall the Guitar amp co. Dual EL 34, converted to home audio quality hifi amp. Ruggedized, fresh tubes, call for details.

$ 780  Contact Us  

Marlboro Guitar/Bass Amplifier #520B

Audio Proz Inv #: 27914

15"inch driver, inputs: bass/guitar/flat. Controls: volume/bass/treble. Modified power supply switch. (3x) ruggedized board, power on indicator lamp, tolex (black) with metal corners. Unit has been double checked.

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Roland JC-120

Audio Proz Inv #: 28147

Jazz 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.

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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.

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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

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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.


Parasound HCA-1200

Audio Proz Inv #: 28849

200W per ch., excellent relay protection circuit, modified to improve heat stability and ground loop problems.

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Rane HC6

Audio Proz Inv #: 29239

headphone amp, excellent condition, demo unit, with improved grounding and power supply

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