Audio Proz Service and Sales


DBX RX9

Audio Proz Inv #: 3162

TEAC Noise reduction, needs relays and work on circuit board which we do here.

$ 200  Contact Us  

DBX NX-40

Audio Proz Inv #: 44924

Two channels, with RCA in/out. #8 condition with some wear to top cover, but very good mechanics and faceplate cosmetics. Fully cleaned, serviced, and calibrated.

$ 66  Contact Us  

DBX NX-40

Audio Proz Inv #: 55061

2 channel encode decode. DBX 224 Type noise reduction. In 1/2 box design, very compact. All cleaned, calibrated. 9 condition.

$ 120  Contact Us  

DBX II 128

Audio Proz Inv #: 28047

Compressor, Dynamic Range Enhancer, Noise Reduction system. Front panel features: Above threshold/linear switch, level adjust, compress/expand ratio control, pre/post enhance, rec/play/bypass selection, tape/DBX disc selection, play level match control. Unit designed for cassette or reel to reel. Excellent cosmetic condition. Completely cleaned, serviced, and calibrated.

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DBX II 122

Audio Proz Inv #: 49633

Silver face noise reduction system with record, bypass, play buttons, play level match control, and tape and disc play modes. Excellent condition, cleaned, serviced, and calibrated by AP. This unit could be purchased just to have replacement VCA cards!

$ 120  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.


DBX DUAL 155

Audio Proz Inv #: 8130

2 sets rack. Cleaned all front panel switches, play and rec. Calibrated controls, calibrated for 0 dB. Checked calibration .5 dB difference max between channels. Checked crosstalk, 3 mv internal between record in and play out max. Mint Condition.

$ 550  Contact Us  

DBX Daki

Audio Proz Inv #: 51546

Noise reduction for excellent play back. Stereo. HUUSES DBX Parts 146742, (4 146732. #9 condition.

$ 88  Contact Us  

DBX 941

Audio Proz Inv #: 53364

For 900 series racks. Type II noise reduction. 2 Channel encode. #9 Condition.

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DBX 900 Series

Audio Proz Inv #: 53365

Rack unit, equipped 8 DBX411 units. Equipped with 8 DBX41 units. 8 RCA Rec i/o. 8 RCA rec i/o. -3 RU. 7+ Condition, all modules tested and calibrated QC'd. Needs TLC upon purchase.

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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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Contact us about similar items or replacement parts.

DBX 463x

Audio Proz Inv #: 44323

Noise floor unlimiter style gate (forces noise floor down and expands away from noise floor). Very usable for Home and/or studio use with very basic threshold and level. One time demo unit but still like new, in original box and packing. No rack kit included.

$ 100  Contact Us  


All Remotes are now 25% off or Free Shipping!!!  (Reel to Reel remotes excluded).


DBX 463x

Audio Proz Inv #: 46171

Noise floor unlimiter style noise gate, forces noise floor down and expands away from noise floor. Basic threshold and level controls. Very good #8 condition.

$ 80  Contact Us  

DBX 410

Audio Proz Inv #: 53303

For 900 series racks. #9 Condition. Tested, calibrated.

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DBX 263A

Audio Proz Inv #: 16100

De-Esser with rack ears

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DBX 228 Dynamic range expander.

Audio Proz Inv #: 28044

One space rack mount. Unit performs disc encode as well as tape encode/decode.

$ 200  Contact Us  

DBX 224X-DS Type II

Audio Proz Inv #: 45910

Single space rackmount stereo tape noise reduction system. Has switching and jacks for two tape decks, including bypass and dubbing. Record and play level controls. Unbalanced and RCA phono connectors. Serviced, cleaned, and tested OK (rack ears added), in mint condition with original box and packing.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

DBX 224 Type II

Audio Proz Inv #: 47486

Recording Technology Series, Rack Mount Heavy Duty Real Pro Construction. Simultaneous encode/decode, RCA ins/outs, level adjustment control for record, play (tape) and play (disc). Rack ears included -minor scratches at rack holes, low use unit, cleaned and fully serviced. +/- .5db calibration. #9 condition, 

$ 240  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.


DBX 224

Audio Proz Inv #: 55059

Dbx 224 Later Version -Silver Trim with anodized black face  No Rack Mount -120 VAC - All cleaned and calibrated. #9 condition

$ 188  Contact Us  

DBX 224

Audio Proz Inv #: 41210

Later new version. Stereo type II tape noise reduction, With silver rack ears (with obvious wear) simultaneous encode/decode, older/space rack, front panel: Tape/Bypass/dbx Disc Selection, rear panel: preamp RCA STR I/O, Recorder RCA STR I/O, LUL ADJ, Trimmers: Tape Rec/Play, Disc Play.  Cannot be converted to 220v. Like new cosmetic condition #9

$ 228  Contact Us  

DBX 208 Rack

Audio Proz Inv #: 51462

With 9 units of 411 cards. #9 Condition. Not serviced.

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DBX 208

Audio Proz Inv #: 25465

w/10x411 Modules, the power chassis get $100 plus alone, each module if sold separately gets $80-$120. Our shop owner might make a dial for the complete unit, it is low use equipment in storage for many years that came out of the shop owners personal studio and in total is in B+ condition.

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DBX 200

Audio Proz Inv #: 44579

Program route selector. Three selectable tape monitor loops, three selectable processor loops, noise reduction in/out. RCA ins/outs. Very good #8 condition with some minor scratches on top of unit. No rack ears included, but they are available. Professionally cleaned, serviced, and tested by AP.

$ 110  Contact Us  

DBX 180

Audio Proz Inv #: 52723

intact but needs repair, selling for parts or a rebuild

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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.


DBX 180

Audio Proz Inv #: 51899

Single rackspace. This is the best DBX noise reduction system on the market! +4dB, simultaneous encode/decode. 3 wire balance terminal strip on back panel. Used, in excellent #9 condition. Professionally cleaned, calibrated, and tested.

$ 180  Contact Us  

DBX 172

Audio Proz Inv #: 16489

Dual channel expander and gate with balanced ins and outs. Like new with original box and manual, used only a few times as a rental demo. The best gate ever made!

$ 320  Contact Us