Replaced 4053 buffer chip, repaired broken lands due to mounting screw too long, checked and okd all functions, this unit must be mounted to rack shelf with short 1/4" screws, price is for a pair.
Expander/Compressor/Limiter, 1 space rack mount, Front: attack and release time, expand threshold and ratio, compress threshold and ratio, output gain, ouput limit, output level/gainreduction LEDs, de-ess switch; New w/Manual & Warranty
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
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.
Engineering model, modified-rev 6, unit has updated board installed-RP282 to RP583, dynamic eq bias/channel tracking within +/-2dB, assymetrical RMS/detector circuit installed, logarithmic slope detection, PS modifications/head room and noise mod. Calibrated +/- 1db channel to channel. Too much to list, call for details.
Dynamic range enhancer, can handle pro +14 dBm level, powerful linear compressor/expander, useful to compress listener program music to nice even level background, excellent audio quality circuitry similar to most expensive DBX equip. , power supply cap upgrade, audio capacitor upgrade, calibrated, etc.
These machines are rare and special because they are true gain ranging compressors for engineers who want to squash a high dynamic range without much pumping. It is also able to expand dynamics, adding energy and depth to dead recordings.
New in box! This unit functions as a compressor, limiter, and deesser. Input level, output level, attack, release, and compression ratio controls. Overload indicator, gain reduction meter, and pilot light. Professionally cleaned, serviced, and calibrated.
2 channel compressor w 1/4" and XLR connectors for inputs and ouptuts, excellent channel tracking, peak stop circuit, excellent expander gate, limiter, bypass, unit has excellent channel matching compression, well-built button controls, cleaned switches in excellent shape and works perfectly
Mint condition. Full featured compressor with auto attack/threshold. Xlr in/out must run true balanced line. All cleaned and calibrated excellent low use condition.
Vacuum tube compressor. Multi-function tube based preamp/comp. Matched original tubes installed, all cleaned and calibrated, channels matched to 1 db! Gain reduction metering calibrated to within 2db. Fully updated and spec'd. Minor rack rash, #9 condition.
Stereo mastering compressor. Super spec'd calibration for accurate control and metering, left to right channel matching within 1/2 db. Over 50db of compression range! Fully cleaned and checked over, re-soldered VCA V8 module at board. #9 condition, excellent.
Very nice compressor, designed for real pro work at +14dbm. XLR/phone in/outs. 120/240v. Hong Kong version with steel shield tops. 2 rack ears included. #8 condition with some obvious scratches on edge. Clean face and knobs in excellent condition. Professionally serviced and calibrated.
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.
Mint condition with box and packaging including users guide and warranty card. Compressor, Meequalizer, and dynamic Enhancer. Earlier version sales representative sample. Owners personal unit, used as a studio comparison model. #9+ condition
Very obvious gain ranging compressor, similar in design to Aphex Easy Rider and many other vintage designs. Warm sounding, old school design uses SSM2010 VCA. XLR and phone in/out, side chain connection. Excellent #9 condition, professionally cleaned and serviced.
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
Super quality design. Similar to DBX160XT except 2 channels with noise gate. Heavy duty design. Very sophisticated gain ranging design with very accurate calibrated panel controls. Full in/outs for side chain use and phone XLR. Channel calibration within 1 db over 70 db dynamic range!!! Modification to RMS Detector to lessen RMS detector leakage into audio and nicer max compression effect for bigger sound. Low use, all cleaned, minor scuff on top and face. Condition #9-
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.
2 Channel inputs, outputs with independent controls for gain, limiter, expander/gate and compressor. Low use, calibrated channel tracking +/- 1db over 80db range. 9/10 condition, Unit is in great condition, some scratches on top but faceplate is nearly flawless.
Modified to do greater compression and expansion range. For studio use or consumer. Has old style metal shielded modules similar to old DBX 160 series RCA in out. But unit will operate sem pro +14db levels now.
