TEAC Noise reduction, needs relays and work on circuit board which we do here.
2 sets rack. Cleaned all front panel switches, play and rec. Calibrated controls, calibrated for 0 dB. Checked calibration .5 dB difference max between channels. Checked crosstalk, 3 mv internal between record in and play out max. Mint Condition.
Noise reduction system, 1 rack space, 2 channel noise filter, XLR in outs phone in/out. Used as AP engineering sample.
Single ended noise reduction, 1/2 rack space, very popular device to quiet guitars or bass/keyboards
Basic DBX noise reduction system
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De-Esser with rack ears
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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!
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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Decliner Noise Reduction, 2 Rack Space, input level matching, RCA Jacks, 2 channel, simultaneous encode/decode
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Noise reduction system, 2 rack space, 4ch, all RCA in/outs. No rack hardware included.
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Noise Gate. Box, Packing, Manual. 1/2 Rack Space. Accessory pack.
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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.
8-channel Noise reduction System! Has 8 DBX 410 cards. Mint condition.
Modified w/ ground lift switch. Excellent Cosmetic Condition!
Silver Face, Practically mint condition Dolby C noise reduction
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Classic Mid 70s teac noise redux w/dolby, hooks up between tape deck and receiver/preamp, super spec calibration, excellent fidelity
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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.
8-channel Noise reduction System! w/ 5x410 and 4x411
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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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1/4" phone in/out/key. No xlr. Ground lift switch. Threshold release depth controls. 4 channels. 1 space chassis w/rack mount. Power supply ruggedized by Audio Proz. Serviced, cleaned, and QC OK.
DBX Noise Reduction rack unit. 4 ch, 16 RCA phono jacks on rear, 4 each (input, output, encode out, encode in), selectable 4-channel NR. Unit cleaned throughout. Excellent condition, minor scratches.
Dolby D super NR similar to Dolby B but further reduces noise hiss, best to set play level calibration very high to overcum low level signals which may be excessively nose reduced. Can be used as Aphex type presence enhancer, excellent 2 channel calibration (made originally for Nakamichi and JVC).
Click and Pop eliminator, excellent condition, modified - call for details
The TNE is rackmount and in like new condition, but I only sell the Audio proz modified version. (This is a highly in demand piece that usually has a waiting list) This mod makes the unit work remarkably better. The same is with the 1201A, which is in a slightly worn condition, but certainly very acceptable. This unit also has a modification. See our listing # 60892I was the chief line tech and production assistant at Burwin research and even though my modification is simple and clever, it took a year to design. I myself was desperate for a better, wider applicable performance. The unit works better with many phono preamp cartridge combinations. I do prefer Stanton and Audio Technica cartridges because these guarantee honest bandwidth and correct stereo separation which is critical to best nick pop elimination. The Stanton 680 or 681EEE or AT 311 EP or 440ML is excellent. Indeed the ART phono preamp with proper cartridge loading switches and level control will optimize the TNE performance. I am on the side of laboratory standard ideals and not audio-“phoolish”, intentionally off RIAA standard preamp designs, which can be sometimes interesting sounding, but is usually just strange equalization tricks to impress the consumer. In my opinion its best to have an out board equalization to fix the many and varied equalization “opinions” existing on the stereo-mix of the record. See all about the complete TNE mod service here: https://www.audioproz.com/AP.php?Article=46
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Professional, all purpose, single ended noise reduction system with TAC dynamic filter and auto filter. (sn:61066704)
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We are presently operating on an APPOINTMENT ONLY basis. Please call us first at (617) 926-8020 to schedule an appointment before you come into the shop for repairs, rentals, product recommendations, consultations, or anything other than minor purchases.
One space rack mount. Unit performs disc encode as well as tape encode/decode.
Compressor, Dynamic Range Enhancer, Noise Reduction system. Front panel features: Above threshold/linear switch, level adjust, compress/expand ratio control, pre/post enhance, rec/play/bypass selection, tape/DBX disc selection, play level match control. Unit designed for cassette or reel to reel. Excellent cosmetic condition. Completely cleaned, serviced, and calibrated.
