Audio Proz Service and Sales

(2) Mallory Type CGS 21000 MFD Positive+85C Biamp Capacitors

Audio Proz Inv #: 58693

For Biamp 2500, Max Surge 125VDC. 8/10 condition (known modestly used parts).

$ 28  Contact Us  

AB Systems Precedent 900 parts deck

Audio Proz Inv #: 49836

This 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  Contact Us  

ADA Microtube 200

Audio Proz Inv #: 43733

Power amp. Parts unit. Contact us about repair, parts, or replacement.

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Adcom power supply capacitor #658-9610-680 15-0024B

Audio Proz Inv #: 51706

18000uF 100vDC. Used in excellent condition. Pair available.

$ 24  Contact Us  


Audio Proz Inv #: 55029

Rubber feet set(4). 8-32 machine screws. Like new, 9+ ($6 full set)

$ 6  Contact Us  

If you are having trouble finding parts, enter the name into our search bar at the top of the page. 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.


Audio Proz Inv #: 55028

Carry strap handle. 8.5" long, black. With hardware; black and nickel. Like new, #9+

$ 8  Contact Us  


Audio Proz Inv #: 52576

Mallory filter caps, 1000 MFD, 75 volt, 95 v surge, pair available, condition #9

$ 20  Contact Us  


Audio Proz Inv #: 52700

face and top cover, minor scratch on the top edge, minor scratch on front but very nice & presentable, condition #8

$ 36  Contact Us  

Apt 1 amp

Audio Proz Inv #: 54381

Face plate. Grey with light wear around edges. Minor scuffs, presentable but used, #7

$ 32  Contact Us  

Apt 1 amp

Audio Proz Inv #: 54389

grey faceplate with window. Minor wear around edges, a few dull spots on face, ding in center, still presentable, #7+

$ 22  Contact Us  

Apt 1 amp

Audio Proz Inv #: 54387

Grey faceplate with window. Minor wear around edges, light scuffs and sratches on left face, #7

$ 20  Contact Us  

Re: International Shipping: We ship internationally often and have yet to encounter a problem or complaint. We are very careful to test the equipment before itís packed and then to double box the machine with added protection when needed for front panels, etc. We are not amateurs or an ebay store; we know these machines very well and know what it takes to get them to you safely. We use USPS priority internationally which seems to be the cheapest. If you prefer another carrier (you should know who delivers to your area reliably) please let us know. Also please be aware of any tariffs that you may be responsible for upon pick up on your end. International shipping may be expensive but we will make sure it is not a headache on top of the cost. PLEASE NOTE THAT SHIPPING INTERNATIONALLY WILL BE A MINIMUM OF $16 EVEN FOR SMALL PARTS.

Apt 1 amp

Audio Proz Inv #: 54388

faceplate, grey with window. Very minor wear around edges, some light dings on face, very presentable, #8

$ 34  Contact Us  

Apt 1 amp

Audio Proz Inv #: 54268

Face plate. Grey with very minor light scratches. #8

$ 48  Contact Us  

APT 1 face plate

Audio Proz Inv #: 47011

Standard, army green and black color. Good #7+ condition with two light but obvious scratches, definitely an acceptable replacement face plate.

$ 38  Contact Us  

APT amplifier face

Audio Proz Inv #: 43341

Some obvious scratches on edge but not unacceptable as a replacement.

$ 20  Contact Us  

AR Amplifier parts

Audio Proz Inv #: 45161

We 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.

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Behringer KX1200

Audio Proz Inv #: 53213

I/O board. 7 1/4", 2 RCA L/R, 2 XLR M/F connectors. PCB#204040REVE/02. #9 condition

$ 20  Contact Us  

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


Audio Proz Inv #: 50243

#9007-0260-E Board intact clean, some parts removed, can be used for rebuild, parts, can easily be restocked with parts #8

$ 22  Contact Us  

BGW 500 and 750 parts

Audio Proz Inv #: 45149

We have many parts available for BGW amplifiers 750, Heatsink: $20, 2N 3773 $6 each, SJ7394 $6 each, only these listed parts are available. Circuit boards with original parts and transistors appear to test good, board has no damage visible $58 each.

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Bi-Amp 2500

Audio Proz Inv #: 58690

Rack Handles. 7+/10 condition. Obvious but minor scratches.

$ 20  Contact Us  

Biamp 2500

Audio Proz Inv #: 58721

Parts for repair. 380004400 rev 8. AMP board only, intact low use and tested with switch. Output transistors listed 2SD746A, 2SB608A $28 each. 2 pieces or more to purchase 22 each.

$ 100  Contact Us  

Biamp Systems CPA 130

Audio Proz Inv #: 54085

Two 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  Contact Us  


Audio Proz Inv #: 61118

RCA SK 9348 output transistor, 9 available, priced as each, N.O.S. #10

$ 12  Contact Us  

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.

Crest Audio 3001

Audio Proz Inv #: 46420

Intact machine good for parts. Two channel power amp.

$ 100  Contact Us  

Crown 2653-0016 AC switch

Audio Proz Inv #: 52052

High power rating switch.

$ 12  Contact Us