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DBX 117

Dynamic Range Enhancer

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DBX 117


The DBX 117 can re-expand the limited dynamics of tapes, records and FM broadcasts and bring your music back towards it's original dynamics.

The 117 is easily connected to your receiver or integrated amplifier/preampliifer.


Compression & expansion: continuous from 1.4 compression slope (14 dB output change/20 dB input change) to 2.0 expansion slope (20 dB output change/10 dB input change)

Dynamic range: 120dB input or output

Input noise: -110 dBm typical, -100 dBm maximum

Input level: maximum input signal in excess of 30 Volts RMS

Input impedance: 50K ohms

Output level: maximum output 10 Volts RMS open circuit; +17 dBm into 600 ohms

Output impedance: 500 ohms

Distortion: 0.5% maximum @20 Hz, 0.2% typical above 50 Hz for complete cycle of compression and expansion; 1.2% @20 Hz for 2:1 expansion; .05% typical @ 1 KHz and above for any setting of controls (3 Volts RMS or less input or output.)

Frequency response: +0, -1dB 20 Hz to 20 KHz

Attack time: 50 dB/m Sec maximum initial attack rate @1.4 expansion. 12 mSec to 65% of final value @ any setting of compression or expansion. Adjusted to be within integrating time of human ear within the constraints of reasonable low frequency distortion.

Release (decay) time: constant rate 140 dB/sec (norm) or 50 dB/sec (slow) @ 1.4 expansion

Level match control: unity gain point may be varied from 100 mV to 1 Volt

Power consumption: 115 VAC 50-60 Hz 2 Watts

Dimensions: 3 3/4 x 5 1/4 x 9 inches

Weight: 4.5 lbs



This website is not affiliated with or sponsored by DBX. To purchase 117 spares or accessories, please contact the company via their website or visit an authorised retailer.