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  

FYI, Around the database you will often see us describe the condition of units on a scale of 1-10. #10 would mean the product is new from one of our suppliers, such as Behringer, Audio Technica, etc. #9 means the product is in perfect condition but is used, #8 implies there are some minor cosmetic scratches but unit is mechanically perfect, and so on and so forth.


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  


Audio Proz Inv #: 61913

top cover, nice condition, multiple available

$ 22  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  

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.

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  

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

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  


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  

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.


Audio Proz Inv #: 61118

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

$ 12  Contact Us  

Crest Audio 3001

Audio Proz Inv #: 46420

Intact machine good for parts. Two channel power amp.

$ 100  Contact Us