Audio Proz Service and Sales


DBX 150

Audio Proz Inv #: 52057

Type I noise reduction. Inputs: to/from console, to/from tape rec. Switchable voltage 120/240. Front Panel: calibration level rec/play. Channels A&B in/out switches for rec/play. No rack ears. Excellent condition.#9

$ 110  Contact Us  

DBX 150

Audio Proz Inv #: 52167

Type I noise reduction. Two channels A/B, in/out switches, rec/play level adjustment, console in/out, tape in/out. Fully serviced and calibrated, excellent condition, rack ears included.

$ 100  Contact Us  

DBX 150

Audio Proz Inv #: 52170

#u1501294. Type I noise reduction. Two channels A/B, in/out switches, rec/play level adjustment, console in/out, tape in/out. Fully serviced and calibrated, excellent condition, but no rack ears included. 9/10

$ 100  Contact Us  

DBX 150

Audio Proz Inv #: 52896

half rack unit, phone in/out, 2 channel encode & decode, no rack ears, unit has a worn face, used as a rental unit, serviced and calibrated, condition 7+

$ 66  Contact Us  

DBX 150

Audio Proz Inv #: 52166

Type I noise reduction #u1507276. Two channels A/B, in/out switches, rec/play level adjustment, console in/out, tape in/out. Fully serviced and calibrated, excellent condition, no rack ears included.

$ 100  Contact Us  


We have been selling and repairing professional and consumer audio equipment for over 40 years. (Read some of our customers testimonials here)

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 150

Audio Proz Inv #: 52168

Type I noise reduction #u1507544. Two channels A/B, in/out switches, rec/play level adjustment, console in/out, tape in/out. Fully serviced and calibrated, excellent condition, includes rack ears. 9/10

$ 140  Contact Us  

DBX 150 pair

Audio Proz Inv #: 52073

Type I noise reduction. single rack height x1/2 width. 1 11/16" HTx 8 3/8"W. RACK PAIR. NO RACK EARS. Missing knob on butterfly joint. To/from console, to/from tape rec. Calibration levels A+B on front panel, rec/play in/out switches. Tested and working 9/10 condition.

$ 188  Contact Us  

DBX 150x

Audio Proz Inv #: 52172

type 1 unit, 2 channels A & B, noise reduction in/out switches, front panel: rec/play calibration level, rear panel: console input/output, tape input/output, no rack ears, scratches on top cover, condition #8

$ 110  Contact Us  

DBX 150x, 163x Rack Ears

Audio Proz Inv #: 58320

(2)  with 2 holes 5/8 inch apart with hardware. 8+ condition.

$ 44  Contact Us  

DBX 154

Audio Proz Inv #: 17825

Noise reduction system, 2 rack space, 4ch, all RCA in/outs. No rack hardware included.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

DBX 155

Audio Proz Inv #: 17824

Decliner Noise Reduction, 2 Rack Space, input level matching, RCA Jacks, 2 channel, simultaneous encode/decode

SOLD  Contact Us  

Contact us about similar items or replacement parts.


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 157

Audio Proz Inv #: 38484

Declinear Noise Reduction System. With AP power supply upgrades, totally cleaned, serviced, calibrated. Nice wood sideboards, excellent mechanical and cosmetic condition. This unit contains a valuable VCA module.

$ 280  Contact Us  

DBX 158

Audio Proz Inv #: 25466

8-channel Noise reduction System! w/ 5x410 and 4x411

$ 340  Contact Us  

DBX 158

Audio Proz Inv #: 22598

8-channel Noise reduction System! Has 8 DBX 410 cards. Mint condition.

$ 360  Contact Us  

DBX 158

Audio Proz Inv #: 45702

8 channel rackmount unit with DBX 410 noise reduction modules. RCA in/outs and multipin connector. Condition: 9

Contact Us  Contact Us  

DBX 163x and 463x

Audio Proz Inv #: 50904

Compressor and noise gate pair mounted together in rack. Very good #8+ condition with many tiny minor scratches on ears and face.

$ 300  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  


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.


DBX 180

Audio Proz Inv #: 52723

intact but needs repair, selling for parts or a rebuild

Contact Us  Contact Us  

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 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 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.

Contact Us  Contact Us  

DBX 208 Rack

Audio Proz Inv #: 51462

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

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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  


We offer expert time-saving advice on repairing many types of home and studio equipment, as well as consulting for product and recording issues, at a fair and reasonable cost.  For complex matters, we sometimes must charge a small technical fee.  If we can help solve your repair problem or technical conundrum, give us a call.  (617)926-8020.


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 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