Audio Proz Service and Sales


MXR Pitch Transposer Display

Audio Proz Inv #: 17916

2 modes: Half step and ratio, 1 rack space (to be sold with MXR 129 #17917 - $480 all together). Read more on MXR Pitch Transposers here.

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Korg KEC-42

Audio Proz Inv #: 17897

EQ/Compander, 4 channel EQ, midrange sweeping and side chain expander/compressor etc., stereo compressor, missing foot - Housing rack unit style but no "ears" 1 space. With original box, packaging, manual, and warranty card.

$ 170  Contact Us  

Korg KEC-42

Audio Proz Inv #: 17896

EQ/Compander, 4 channel EQ, midrange sweeping and side chain expander/compressor etc., stereo compressor

$ 130  Contact Us  

Aphex Aural Exciter Type E

Audio Proz Inv #: 17882

With manual, Hi-Z input 1/4" phone, Drive/Tune/Mix controls, 1/4" phone I/O, footswitch

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DBX 463X

Audio Proz Inv #: 17830

Noise Gate. Box, Packing, Manual. 1/2 Rack Space. Accessory pack.

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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.


Furman QN-4A

Audio Proz Inv #: 17823

Quad noise gate, 4 channel, Threshold/Release/Depth, 1 rack space, 1/4" I/O

$ 130  Contact Us  

Behringer Ultrafex II EX-3100

Audio Proz Inv #: 17781

Dual noise reduction and multiband enhancers, XLR and 1/4" I/Os, surround processor, ch 1 and 2 solo mode, 1 rack space, sound enhancement

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Tascam EX-20 / Tascam PE-20

Audio Proz Inv #: 17725

Tascam EX-20 Expander, 4 channel, XLR/Phono I/Os, Bus I/O (phono), phono dir out, Trim/Aux/Aux pan/Pan each with own volume / Tascam PE-20, Parametric EQ, all phono I/Os, High/Mid/Low pots with levels, 4 channel - - **$150 for the pair**

$ 150  Contact Us  

Teac DX-8

Audio Proz Inv #: 17434

Noise reduction module, accessory for 80-8 tape recorder, bag, manual, 16 RCA cables, no warranty card. Known to be in good condition. This unit is priced on request depending on service required. $250 (Tested appears to work, minimal repair, clean up time is spent) - $400+ range (Full restoration everything repaired, all relays cleaned (there are 16 of them!!) tested, calibrated, etc.) These are 30 years old, it is almost a requirement to really perfect. Once serviced correctly these are very reliable and great performing machines. We also do a modification in the circuit which reduces the circuit noise another 4 to 6 db and also reduces the crosstalk, simulsync, playback at high frequency by almost 10 db. A significant improvement. $160 for the modification.

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Pioneer SR-303

Audio Proz Inv #: 17246

Stereo reverb amp, blue "tunnel" display window

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Rane RA27

Audio Proz Inv #: 17034

27 Band analyzer with mic pink noise generator, PA or Home speakers, with Mic

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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 it’s 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.


Korg DVP-1

Audio Proz Inv #: 16851

Digital voice processor, LED display, 8 preset/8 bank, full MIDI, 1/4 out mix/direct, 2 rack space, XLR or 1/4" Line/Mic in, chorus/pitch shift, tune port, phones. Unit is in excellent condition with low use time. Possibly the best digital vocoder made.

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Symetrix T101

Audio Proz Inv #: 16836

Telephone interface, 2 band EQ, XLR I/O, 1/4" I/O, compressor/limiter

$ 280  Contact Us  

DBX 128

Audio Proz Inv #: 15952

Double DBX, model 118 compander/expander (infinite compansion to 2:1 expansion), DBX II noise reduction for cassette or reel to reel

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DBX 124

Audio Proz Inv #: 15359

Basic DBX noise reduction system

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Trouper Series SOP-1

Audio Proz Inv #: 15026

Equalizer, Limiter

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Aphex 103A Aural Exciter Type C

Audio Proz Inv #: 14989

Different version than most Type C, Has much better drive circuit and 5534 opamp circuits! Nicer sounding and more sophisticated entrance circuitry quieter operation, wider range on frequency tuner.

$ 180  Contact Us  


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.


Pioneer SP-101

Audio Proz Inv #: 14701

Synthesized surround sound processor, Cosmetics Very good. Two channels: Front - synthesized frequency (LEDs 30,40,50,60 Hz). 30 and 40 Hz cut switches. Tape Monitor switch. Bypass switch. Surround Mode selector (simulated stereo, studio, theater, stadium). Synth level, balance, master volume controls. This machine also does Vocal elimination in studio mode of operation... THERE ARE OTHER PRODUCTS AVAILABLE THAT CAN DO THESE SIMILAR FUNCTIONS. call for more info.

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TVE Vocal Eliminator

Audio Proz Inv #: 14522

Removes vocals by tuning out frequencies and nulling center channel vocals, with stereo image enhancer. Controls and switches cleaned. New power switch. Ruggedized.

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Rocktron Prochorus

Audio Proz Inv #: 14241

1 rack mount space. Good cosmetics. Similar to the ADA Stereo Tapped delay. Inst/line level input (with rear switch), rear 1/4" phone jacks for Input, Footswitch, and Left and Right outs. Controls: Modulation/incl. Random and Regen., delay assignment: 5-42 ms, Left and Right mix. New lower price!

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Aphex Aural Exciter Type B Model 102

Audio Proz Inv #: 14226

1 rack space, 2 channel drive/tune/mix controls, 1/4" phone jacks for rear I/O

$ 220  Contact Us  

ADA PitchTraq

Audio Proz Inv #: 14220

Programmable pitch transposer, 1 rack mount space, good cosmetics, fully programmable touch button pitch transposer with 16 (4x4) memory banks, matte surface membrane panel, rear I/O and special functions, 1/4" phone jacks

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Korg KEC-42

Audio Proz Inv #: 14216

EQ/Compander, 4 channel EQ, midrange sweeping and side chain expander/compressor etc., stereo compressor

$ 130  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.


Digitech GSP5

Audio Proz Inv #: 13940

Multi-effects processor, 5 effects, very quiet/clean, great solid state and distortion sound, echo and chorus delays

$ 150  Contact Us  

Azden AVS-20

Audio Proz Inv #: 13622

Audio/Video router selector, 4 video in, 2 Svideo in, passive switcher and dubber, Mic input mixing. Excellent unit with virtually no channel crosstalk leakage!

$ 95  Contact Us