Modified 3 band compressor/expander with vairiable control. Ground, power supply, and input gain modifications. Nice controls. Excellent unit.
The 503 is simply the rack mount version of the original 3bx expander design with 2 variations of circuits. 1 version 3bx used all discreet circuit parts and actually can sound a little tube like with some harmonic "thickness" due to the VCA design. This is a very rare version. The later second version used a custom made dbx IC used in most vintage products. Both 3BX are known to sound robust in comparison to modern 3BX XDS which can sound a little forward and slightly bright.
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Stereo Compressor/Expander/Gate 2 rack space Vacuum Tube Processor WOW excellent compressor!
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Dual Compressor Limiter, with original box in #9 condition.
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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.
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4 channel compressor, GAIN RANGING COMPRESSOR
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Dual channel compressor with peak limiter. Excellent fine tunable compressor and gate with adjustable attack. Perfect condition, as new, but missing original box.
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Compression/expansion control, threshold control, linear/nonlinear control. Modified for synth use. Does weird distortion/compression trick on both channels. 8+/10 condition.
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.
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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
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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
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RCA A+B in/outs, RCA outputs to preamp.
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.
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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.
DBX 166 Output Gain Aluminum Shaft Pot 20KB. 8+ used.
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New, Single channel esoteric tube processor, compressor,mic preamp, semi-parametric EQ.
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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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Tube Compressor, 2 channnel variable voicing, expander gate, xlr and 1/4" ins/outs
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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.
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for various models. Black face meter. Used in good condition.
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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.
2 Channel Threshold/ Rec Rate on gate Threshold/ ration over east compressor Peakstop level/ output gain Bypass, Stereo Couple LED indicators Ground Mod 8+ condition. Minor rack rash. Cleaned and Calibrated
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Digital 24-bit dual DSP
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Mic preamp/compressor/parametric EQ. Demo unit, engineering sample. Excellent #9 condition with some minor scratches on top and bottom of case.
Tube mic preamp/compressor/equalizer. Super spec QC. Highly recommended machine! New stock. Super spec machine!
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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-
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REV2. NEW. 2 Channel vactrol compressor. With 2 channel modified with compression EQ. Condition: 10.
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We know you have many options for purchasing audio equipment and parts, and we truly appreciate your business. We strive to offer good products at competitive prices. While we can't always match the prices of one isolated reseller, we make up for it by carefully selecting, testing, and finding unique and special rare parts, and we are here for the long run. We guarantee everything we sell and we hope it helps you to enjoy a great listening experience.
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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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.
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