Audio Proz Service and Sales


Ashly Powerflex 6250

Audio Proz Inv #: 70573

Power amp. 80 Watts per channel. Channels 1-4 work properly. Channels 5 & 6 DO NOT TURN ON. AMP MODULE HAS BEEN REMOVED FROM UNIT. (Thermal indicators still turn on for ch 5 & 6 - but that's ok) Amp has been serviced. Condition #8

$ 300  Contact Us  

Audio Research D-52

Audio Proz Inv #: 71402

Basic power amplifier  50 watts/channel   Silver 19" rack mountable with Black handles  4 Front mounted fuse holders for the +/- voltage rails for L and R channels. Unit currently is not functional and needs repair - needs custom proprietary AR pre-amp module  # 4405828969) Unit in fantastic condition cosmetically, but needs module to be fully functional  Due to this factored rated 8+ condition

$ Call  Contact Us  

Audio Research D-76 Tube Power Amplifier

Audio Proz Inv #: 72316

Comes with original instruction manual. Formerly cracked/ aged solder was repaired and ruggedized. All input connectors tightened and cleaned. Excellent, top quality transformers used in this unit. All tubes were pulled, pin connectors polished, cleaned and lubed with silicone. Tubes test excellently. New, 5 amp slow blow fuse put into unit. Beautiful, low use unit. Cosmetically and functionally excellent. Recently tested, cleaned and serviced. Cage cover does not currently fit over the top due to large tubes, tubes could be replaced with slightly smaller to fit cover. Some speaker terminals plastic shielding pieces cracked, will not affect units use in any way and are hidden by top cover when installed. #9 Condition.

$ 1600  Contact Us  

Audio Source Amp 100

Audio Proz Inv #: 51311

Auto input sensing of 2 inputs line out slim line NEW

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Audio Source Surround Processor 4 channel add on

Audio Proz Inv #: 63819

Actually very good SQ simulator for nice back channel ambiance. Line out is on master volume, fader adjusted front to rear. Machine can act as simple remote control volume for the 4 channels. #9

$ 128  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.

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.


Audionics CC-2

Audio Proz Inv #: 50149

Rackmount, black metal face with handles. 80 watts per channel audiophile amplifier. Excellent condition, very low use time, professionally serviced, calibrated, tested.

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B&K Reference 2200 Stereo Power Amp

Audio Proz Inv #: 71589

220 watts per channel (2) XLR IN, (2) RCA IN, 2 channel speaker out banana post. Low use, basic service bench tested, cleaned switches. Condition #9

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B&K ST 202 Power Amp

Audio Proz Inv #: 59740

Rackmount Face. Black color with bronze rack handles. Quasi Class A FET design. 100 Watts. New power switch. All cleaned, calibrated. Bias & DC offset OK. Ruggedized circuit board soldering. Minor scratches on some edges--nice low use machine. 8+

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B52 US-1200 Power Amp

Audio Proz Inv #: 64410

High quality audiophile-grade real power amp, XLR & 1/4" ins, Banana & Speakon outs, Condition New in box

$ 288  Contact Us  

B52 US-1200 Power Amp

Audio Proz Inv #: 64412

High quality audiophile-grade real power amp, XLR & 1/4" ins, Banana & Speakon outs, Condition New in box

$ 288  Contact Us  

Behringer Europort PPA500BT

Audio Proz Inv #: 64173

Portable PA (2) 8" 2-way speakers, sweep tested OK, Mixer/AMP - 6 channel, 2 Mic in, 3 Stereo in RCA / 1/4", 3 1/8", Behringer USB Wireless port, bluetooth, 48v Phantom power, 5-band EQ & FX processor, Top latch closure broken, All function OK, Condition #8

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We know you have many options for purchasing audio equipment and parts, and we truly appreciate your business.  We strive to offer good products at competitive prices.  While we can't always match the prices of one isolated reseller, we make up for it by carefully selecting, testing, and finding unique and special rare parts, and we are here for the long run.  We guarantee everything we sell and we hope it helps you to enjoy a great listening experience.

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.


Behringer Europower EP1500

Audio Proz Inv #: 36807

2 x 700 Watts into 2 Ohms, 1400 Watts into 4 Ohms bridged operation. Signal and clip LED indicators. Balanced XLR and 1/4" TRS inputs.

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Behringer GMX210

Audio Proz Inv #: 53854

2x10 combo amp. With 24 bit analog modular NICE effects and tuner. 2 channels. Stereo line out, stereo lave in, insert loop, aux in, tape in/ out, phones. midi in. Jensen speakers. 8 Condition Minor tole and tears.

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Behringer GMx212

Audio Proz Inv #: 53822

2x12 combo amp. 2 channel with 24 bit display and tuner. Insert loop, slave in, line out phones, aux in, loudspeaker out. Jensen speakers USED. Very minor tolex tears, fixed broken effect knobs. 8+ Condition.

$ 162  Contact Us  

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  

Behringer HA-4000

Audio Proz Inv #: 42424

Headphone distribution amp, 4 channels. Multiple patch points, very flexible unit. High power, capable of driving wide variety of studio headphones. Left, right, mute, mono switches. Fully inspected and cleaned. A higher quality and rugged original unit. Excellent, #9 condition. Manual included

$ 140  Contact Us  

Behringer HA-4700 Powerplay Pro-XL

Audio Proz Inv #: 38800

Powerplay Pro XL 4 channel Headphone amp. More units are available

$ 110  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.


Beringer Ultra Bass BX1800

Audio Proz Inv #: 61564

180 watt bass workstation, DX loop headphones jack, CD in RCA inputs, -6 db pad switch, 15" speaker with piezo tweeter in excellent condition, unit has some wear, marks, scuffs on tolex, few small tears, grill cloth in great shape, new power switch installed, interior is clean, sounds good, versatile amp, 7+ condition

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Beringer Ultratone K900FX 90 WATT PA/Keyboard combo amp

Audio Proz Inv #: 61663

1 XLR mic/line input, 2 line (1/4") inputs. Graphic EQ, Many onboard reverb, delay, flange, phaser effects settings. No footswitch, 12k fader bulb is out otherwise great condition,  has been custom dampened for better bass clarity.(effects control works but knob needs fitting,) #8+ condition. 

$ 148  Contact Us  

BGW 250C

Audio Proz Inv #: 52601

High quality circuit design, reliable, 4 space rack mount, later version production. #9. We can Repair/Service this model and similar amps. Call for more info. 617-926-8020

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Bogen CTS 1100

Audio Proz Inv #: 55341

Mono P.A. Amplifier. 5 mic or line inputs with auto compression. Uses SSM 2015 Mic precompressor IC. 4 to 16 ohm out or 25 volt or 70 volt wiring. 10 band EQ. RCA or balanced screw terminal for mic. Unit has seen low use all tested clean. Power light neon is flashy due to age. 8+/10 condition.

$ 280  Contact Us  

Bogen DB20 Series Y-26

Audio Proz Inv #: 61437

Mono tube amplifier. loudness contour switch adjustable -30 db -0b bass, treble. Inputs: Tape, aux, radio LP: AES, NAB, RIAA. All controls clean and good! No leakage around filters caps, (recommended replacement  re-cap). Output tubes: Good, getting slightly hazed, but still has life! GE back plate 6L6 Slightly soft, All tube sockets should to be cleaned. 5U4G needs replacing to operate. Paint very good, nice cosmetics, (bottom scratched). Very well done mono tube and excellent noise floor less than 5 mV. #8+ condition.

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Bryston Stereo Amp 4B

Audio Proz Inv #: 43836

This unit can definitely be made functional, but it has some aged resistors that should be replaced. Please contact us for more information.

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


Cambridge audio A300

Audio Proz Inv #: 60459

No phono in. Aux CD, Tuner, Aux. Nice Basic design. Black. Clean & calibrate. with box, #9 condition.

$ 188  Contact Us  

Cambridge Audio Azur 340A

Audio Proz Inv #: 44472

Integrated amplifier with remote. RCA ins for aux, CD, tuner, DVD, and AV/MD. Tape monitor loop, bass and treble tone controls, two speaker sets, and balance control. Excellent #9 condition with very minor scratches on cover.

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