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DBX 122

Tape Noise Reduction System

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DBX 122


The DBX 122 and 124 are the only consumer tape noise reduction systems available which allow you to make tape copies that sound exactly the same as the original is the DBX II. It assures that no audible tape noise is added by the tape recording process. Only noise present in the original source will survive the DBX II system.

The 122 is a two-channel system which allows you to simultaneously monitor the noise-reduced signal off tape as you record. You can use both to record live, tape to tape, record to tape, and also for dubbing and taping off radio.

Complex level matching and alignment procedures are unnecessary, since these systems operate linearly, using the DBX patented true RMS detectors and voltage controlled amplifiers. This is not the case with competitive systems, such as Dolby's B. Moreover, Dolby B gives you only 7 to 10 dB of high frequency noise reduction, vs an astounding 30 dB reduction of tape background noise at all frequencies with the DBX II system.

Other features include a bypass switch, power on/off plus a DBX disc playback button. The latter is to be used only to decode commercially available DBX encoded discs, which provide totally noise-free, full dynamic range music reproduction. A playback level control is provided for your convenience.


Channels: 2

Input sensitivity: 300mV

Output level: 7V (max)

Noise reduction system: dbx II

S/N improvement: 30-40dB (dbx II)

Dynamic range: 110dB

Frequency response: 30Hz to 20kHz

Total harmonic distortion: 0.5%

Dimensions: 95 x 279 x 260mm

Weight: 3.17kg


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re: DBX122

Need a schematic for DBX-122 or a spec for Capcitor C-6 on small board.

re: DBX122

Schematic is in the back of the Owner's Manual

re: DBX122

Thanks for answering. I am the origional owner and I have the manual, But, alas, no schematic in mine. If you have one can you give me the value for capacitor C-1 on the small boards?? thanks

re: DBX122


This website is not affiliated with or sponsored by DBX. To purchase 122 spares or accessories, please contact the company via their website or visit an authorised retailer.