Audio Proz Service and Sales


Rocktron prorax CE1

Audio Proz Inv #: 72659

Gain reduction,  Compressor/ Expander. Tested OK. All switches and controls triple cleaned. Replaced regulator and upgraded main filter cap for regulation. Fully functional unit. Top cover has a fair amount of scratches. Faceplate mostly clean with some signs of use and light scratching. W/ AC adapter (120V AC 60hz 9w, 15v DC 300mA) #8- Condition

$ 230  Contact Us  

Burwen Research TNE 7000A Transient Noise Eliminator

Audio Proz Inv #: 70234

Rev.6 version, all updates, TL075 op amp, Super Spec Machine. Very minor face edge scratch, Rack-mount design, no rack rash #9- condition

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KLH TNE 7000

Audio Proz Inv #: 70214

Nick and Tick reduction 2 space rack Unit Modified with control for variable window of tick & pop capture. SPECIAL ENGINEERING MODEL (Rev 5). Stereo phone jack In & Out . Retro Knobs #8+ condition 

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Tascam DX-4D

Audio Proz Inv #: 62962

4 channel noise reduction, this version has no FV cable. Converted FV to dbx always on. With rack ears. #8 condition 

$ 188  Contact Us  

Tascam DX-4D

Audio Proz Inv #: 62960

with rack ears, SN:430309. Converted FV to always on dbx  #9+ condition 

$ 200  Contact Us  


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.


Burwen KLH DNF 1201 A

Audio Proz Inv #: 60892

Stereo hiss, noise reduction. For use with tape decks, and records. This is a Modified version that allows more of the high frequencies and music ambiance to be retained when the filter operates. Rack mount 110/220 VAC. Much nicer operation in modern use. Minor but obvious face scratch, #7+ condition

$ 160  Contact Us  

Concord DBA-10

Audio Proz Inv #: 59777

Dolby B. Outboard unit. RCA in/out. Encode or decode (not simultaneous) with level controls, test tone calibration, trim controls on front panel. Calibrated internally to +/- 1db tracking. 9/10 condition.

$ 168  Contact Us  

Phase Linear 1000

Audio Proz Inv #: 59325

Autocorrlator noise reduction system. Dynamic range recovery. Peak unlimiter/down Expander, Autocorrelator. Low freq, calibration controls. Many modifications,crucial capacetor update for better performance and channel to channel spec. ground MOD for super low noise.

$ 300  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  

Burwen DNF 1201A

Audio Proz Inv #: 57248

Rack-mount noise reduction unit. Modified updated version with better high frequency filter, is less obvious for tape hiss reduction. Condition: 9

$ 160  Contact Us  

KLH TNE 7000A

Audio Proz Inv #: 57213

Phonograph de-click and pop reduction device. Rack mount, Rev 5 modification, TLO75 Op amps,  Nice Face. condition #8+

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


Phase Linear 1000

Audio Proz Inv #: 56265

Auto correlator noise reduction system with Rev 6 modifications, low noise TLO75 IC update, some capacitor update. Dynamic range recovery system. Wood case, vintage knobs. Low frequency calibration. 9/10 excellent condition.

$ 388  Contact Us  

SAE 5000A

Audio Proz Inv #: 55950

Phonograph nick and pop reducer. Does not have preamp. INR SYS INVERT/DEFEAT, TAPE MONITOR, SENSITIVITY FADER. AP mod done to improve control calibrating and sensing and filtering the pop or click. Also board has been ruggedized with solder and better caps in power supply. Black brushed aluminum face with wood sides. Minor modification to sensitivity control to lessen audible blanking of audio. Fully serviced, low hours use. 9 + condition. It works good but TNE or Burwen 7000 is a superior design and with my mods it's as good or better than any computer attempt. I worked with Burwen and have upgraded a superior TNE. I am a little famous for this as well as APT products.

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DBX 124 Type II

Audio Proz Inv #: 55894

Unit will do 4 channel encode or decode or 2 channel simultaneous 2 channel decode. Tested, calibrated. Unit requires minor calibration set up

$ 128  Contact Us  

Tascam DX-4D

Audio Proz Inv #: 55359

4 channel DBX with rack ears. Cleaned, tested, minor cover scratches. 8+ condition

$ 220  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 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  


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 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 941

Audio Proz Inv #: 53364

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

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DBX 150

Audio Proz Inv #: 53319

(1 in stock) Low use, mint condition. No rack mount ears. In original boxes! #9 Condition.

$ 120  Contact Us  

DBX 410

Audio Proz Inv #: 53303

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

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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 180

Audio Proz Inv #: 52723

intact but needs repair, selling for parts or a rebuild

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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.


DBX 150

Audio Proz Inv #: 52173

type 1 unit, 2 channels A+B, noise reduction in/out switches, front panel: rec/play calibration, level adjustment, rear panel: console input/output tape input/output, no rack ears, condition #9

$ 100  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