Audio Proz Service and Sales


Alesis 3630

Audio Proz Inv #: 21433

1 rack space lightwieght design (thin depth), full control for attack/release, gate circuit (threshold and rate), stereo link, OK general semi-pro studio use, +4/-10dB out with RTS phone jacks, nice LED display, cleaned controls and switches. **New Low Price!** Mint condition with box and packing.

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Alesis 3630

Audio Proz Inv #: 21395

Compressor/limiter with gate, dual mono or stereo operation, -10dBV or +4dBu on each channel, side chain, LED readout, switchable Peak/RMS and hard knee/soft knee, 1/4" phono in/out, modest performance, semi-pro studio item, cleaned controls/switches, nice cosmetic condition. **New Low Price!**

$ 80  Contact Us  

Alesis 3630

Audio Proz Inv #: 60927

Dual channel semi pro design. Takes -10 or +4 dbm input. Cleaned, checked, and calibrated. #9 condition

$ 96  Contact Us  

Aphex 106

Audio Proz Inv #: 26497

4 channel compressor, GAIN RANGING COMPRESSOR

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Aphex 320A

Audio Proz Inv #: 55203

Stereo Compressor Drive/ process/ balance/ threshold controls Process/ Rate/ Limiter Controls Stero Enhance. Output. GR meter select Has range/ operation Level/ Sensitivity/ For Pro or Consumer Serviced and calibrated 9+ Condition

$ 380  Contact Us  


We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


Aphex Compellor

Audio Proz Inv #: 28097

Compressor/enhancer. later version with updated circutry. XLR in and out only. Super Best quality compressor best sounding easy gain riding compressor. complete cleaning and calibration, excellent condition.

$ 550  Contact Us  

Art Pro VLA II

Audio Proz Inv #: 59467

REV2. NEW. 2 Channel vactrol compressor. With 2 channel modified with compression EQ. Condition: 10.

$ 498  Contact Us  

Art Pro Channel

Audio Proz Inv #: 46218

New stock, Super low noise, QC by AudioPro. Microphone preamp, compressor, and EQ. Is a super spec machine! Incredible quality and condition.

$ 330  Contact Us  

ART Pro Channel

Audio Proz Inv #: 48534

Tube mic preamp/compressor/equalizer. Super spec QC. Highly recommended machine! New stock. Super spec machine!

$ 330  Contact Us  

ART Pro Channel

Audio Proz Inv #: 48537

Tube mic preamp/compressor/equalizer. Super spec QC. Highly recommended machine! New stock. Super spec machine!

$ 330  Contact Us  

ART Pro Channel

Audio Proz Inv #: 43860

Tube microphone preamp. Audio Pro Modified for tube harmonic enhancement circuit, high quality USA Sylvania 12AX7A tube, also has IN/OUT phase, second harmonic enhance Control. Six stage tube design for preamp, compression, and equalization. New stock fully QC'ed. With true tube "Gain Cell" compressor. Super spec unit.

$ 480  Contact Us  


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Art Pro VLA

Audio Proz Inv #: 50695

2 Channel Vactrol/ tube leveling amp, 2 TRS inputs/outputs, 2 XLR inputs/outputs, threshold, ratio, output controls, complete service, power supply mod 35V caps #9+ condition

$ 180  Contact Us  

ART PRO VLA II

Audio Proz Inv #: 58509

SN 1739 rev 4 modification. With PS MOD version 4 transformer. With deep bass enhancement, tunes transformer installed in vactrol. Voiced compressor to lessen a "crowded" mix in spatial midrange imaging. Transformer and enhancement now comes into mix when 2 LED's are lit on compressor. Super calibration, low noise channel spec matches + .5db over 58 db range. 9+ condition, new. Since people keep asking, I use an equalized transformer with capacitors and resistors “tuning” the transformer voice midrange slightly down is installed into the Vactrol circuit. This circuit now allows more bass depth and impulse response, as well as insures that high frequency and presence will not be compromised excessively. Also a little 2nd and 3rd harmonic is imparted on the audio to give a slightly thicker sound to the low midrange and up, somewhat like a tape recording or vintage tube/ transformer pre-amp. Except now everything is cleaner, less noise and stays calibrated same way every day every hour, you can lightly or heavily run the compressor for dramatic effects.. I've sent out this design to quite a few personal studios and the unit is some what tweaked for Rock and Roll or modern multi-instrument acoustic music. Some may have felt its most effective use is on tracking vocals.. Its really about combinations of mics and other matters when operating together.

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ART TCS Tube Compressor

Audio Proz Inv #: 37328

Tube Compressor, 2 channnel variable voicing, expander gate, xlr and 1/4" ins/outs

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ART TPS II

Audio Proz Inv #: 41413

Tube mic preamp TPS II.

REV 7 Modified. Front panel control pot added for control of the Harmonic Distortion of the 12AX7 tube, Gain pad switch equalization improved for better low end response, power switch and transformer insulated from the audio with copper shielding, unbalanced inputs now accept +14 dbm.

$ 480  Contact Us  

ART TPS II Modified Rev 6

Audio Proz Inv #: 41417

New in box, modified tube harmonic enhancement, level match control, EQ mod, Metering Mod, Compress Mod, Transformer shield, Tube Gain mod

To learn more about the modifications on this unit, see the articles section of the website.

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ART Tube Channel

Audio Proz Inv #: 31550

New in box, one channel mic pre/comp/eq. New low price!

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Customers outside of the US, please note that international shipping can be costly ($14-16 minimum for anything larger than an envelope). Take a look at our shipping policies for more information and estimates of prices and shipping time.


ART VLA 500

Audio Proz Inv #: 58673

500 series format plug in. Top quality vactrol design. 10 (new) condition.

$ 248  Contact Us  

Ashley CL52

Audio Proz Inv #: 18983

Stereo compressor, phone in/out, lots of easy to read lights, channel to channel calibration is excelltn, completely cleaned all controls and switches, compression calibration tracks evenly over 50dB range, did mods to improve grounds and power supply noi

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Audio Logic 660

Audio Proz Inv #: 54987

Dual limiter comp/gate with a 1/4 phone and i/o ground lift. Features a gate threshold ratio attack, release output controls, bypass switch, and stereo link. From an engineering standpoint, it is the same as the DBX160XT 166. It has two channels, IEX power connection and is a 1U chassis with rack ears. It has very low use and in #9 condition.

$ 160  Contact Us  

Avalon VT-737SP

Audio Proz Inv #: 32899

New, Single channel esoteric tube processor, compressor,mic preamp, semi-parametric EQ.

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Behringer Composer MDX2100

Audio Proz Inv #: 23554

Demo, compressor/limiter/expander/gate, 2 channel, XLR and 1/4" ins and outs, original like new, better built, better performance, excellent high accuracy compressor, channel matching for tracking is superb

Units vary in retail cost due to condition. Real nice, modified, low use units get more money. The simple fact is this era design compressor is the same as the DBX XT !! But I modify many designs with more R.F.I. suppression and less R.M.S. detector noise getting into the audio V.C.A. (check the internet if not familiar with the abbreviations) Simply put, mods make a slightly cleaner, better accuracy and control of compression of the audio signals. This is done to accommodate today's higher quality signals from microphones and the intense dynamics in modern music.


**We want to be your Behringer dealer! After being among first to champion this great manufacturer, we are offering our most competitive pricing to be your Behringer supplier.**

$ 300  Contact Us  

Behringer Composter Pro-XL, MDX 2600

Audio Proz Inv #: 42434

Fully featured expander/gate, compressor, limiter, de-esser, and peak limiter. 2 channel (linkable), 1RU. Fully tested and cleaned. #9 condition, excellent.

**We want to be your Behringer dealer! After being among first to champion this great manufacturer, we are offering our most competitive pricing to be your Behringer supplier. WE WILL MEET ANY DEALER PRICES OUT THERE!**

$ 68  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.


Behringer Intelligate XR 2000

Audio Proz Inv #: 34678

Excellent mint condition as new, with original box, packing, and manual. Great multifunction 2 channel gate, excellent spec.

$ 220  Contact Us  

Behringer Intelligate XR-2000

Audio Proz Inv #: 42419

Fully featured gate with low and high cut eq filters, ducking, and dual/mono function. XLR and 1/4" in/out, with key ext 1/4" in/out. #9 condition, fully tested and cleaned. Discontinued, hard-to-find model.

$ 120  Contact Us