Single ended noise reduction. Half rack space. Excellent #9 condition.
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.
4 channel expander/gate. Balanced XLR and 1/4" in/outs. Parametric side chain eq filter (built in). Fully tested and cleaned. Light rack rash at screw holes on rack ears, #9 condition, excellent. Popular with studio and live sound. With manual.
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.
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+
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.
(2) with 2 holes 5/8 inch apart with hardware. 8+ condition.
Excellent condition, works as noise gate - effectls loop. Release, gate sensitivity controls.
#10 condition. NEW. SALE
Ultra-Compact 2 Channel 1/4 TRS hum destroyer. Dual mono or stereo. (Identical item available)
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.
Ultra-Compact 2 Channel 1/4 TRS hum destroyer. Dual mono or stereo. (Identical item available)
Ultra-Compact 2 Channel 1/4 TRS hum destroyer. Dual mono or stereo. (Identical item available)
Faceplate for KLH Burwen Research DNF-1201A Dynamic Noise Filter. Rack mountable. #8+ condition with minimal rack rash, very minor wear, and all lettering perfect.
With 9 units of 411 cards. #9 Condition. Not serviced.
Phonograph de-click and pop reduction device. Rack mount, Rev 5 modification, TLO75 Op amps, Nice Face. condition #8+
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Multiband Denoiser, 2-Channel Single-Ended Noise Reduction System. Multiband frequency analysis and processing. TAC (Transient Attack Control) dynamic filters respond accurately to signals with fast attacks. Auto-filter circuitry for automatic sliding filters. Integrated IRC expander circuitry. Adjustable cut-off frequency and release time. Noise reduction of up to 80 dB. Dual-mono or true stereo couple function.
We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.
Noise Reduction, 2 rack space, Modified by AP to reduce hiss very carefully without excessive high frequency loss. Works well on tape and FM signal, 4136 opamp gives slight tubaphonic veiled sound. A somewhat archaic device but still usable as a substitute Dolby decoder or to warm up the audio character of excessively bright recordings.
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Noise reduction system, 2 rack space, 4ch, all RCA in/outs. No rack hardware included.
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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.
Silver Face, Practically mint condition Dolby C noise reduction
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Noise reduction system, 1 rack space, 2 channel noise filter, XLR in outs phone in/out. Used as AP engineering sample.
Noise reduction module, accessory for 80-8 tape recorder, bag, manual, 16 RCA cables, no warranty card. Known to be in good condition. This unit is priced on request depending on service required. $250 (Tested appears to work, minimal repair, clean up time is spent) - $400+ range (Full restoration everything repaired, all relays cleaned (there are 16 of them!!) tested, calibrated, etc.) These are 30 years old, it is almost a requirement to really perfect. Once serviced correctly these are very reliable and great performing machines. We also do a modification in the circuit which reduces the circuit noise another 4 to 6 db and also reduces the crosstalk, simulsync, playback at high frequency by almost 10 db. A significant improvement. $160 for the modification.
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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.
Decliner Noise Reduction, 2 Rack Space, input level matching, RCA Jacks, 2 channel, simultaneous encode/decode
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Noise Gate. Box, Packing, Manual. 1/2 Rack Space. Accessory pack.
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