dbx 131s

Exceptional sound and rugged reliability

When the pros need an EQ, they turn to dbx. With a proven track record that spans four decades, dbx® EQs are the industry standard for touring, studios, and audio installations. With the dbx heritage of revered pro EQs, the 131s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.

The dbx 131s includes a single 31-band channel of 1/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended 10Hz to 50kHz frequency response and 110 dB dynamic range to the quality componentry and meticulous attention to detail, the 131s offers exceptional sound and rugged reliability that guarantees you will always sound your best.

Sure to find a home in the studio, on tour and with installed sound venues, the dbx 131s is destined to take its rightful place in the lineage of great dbx signal processors that are the professional's choice in signal processing. With such affordable quality, there's no longer any excuse for compromising your sound.

Single 31-band, 1/3-octave Constant Q frequency bands
Switchable boost/cut ranges of Â±6 or Â±12dB
12dB per octave, 3dB down @ 50Hz low-cut filter
Front panel bypass switch
Â±12 dB input gain range
4-segment LED ladders for monitoring output levels
XLR and TRS Inputs and Outputs
Frequency Response of <10Hz to >50kHz
Dynamic range of greater than 108dB

Input Connectors	1/4" TRS, female XLR (pin 2 hot)
Input Type	Electronically balanced/unbalanced, RF filtered
Input Impedance	Balanced 40k ohm, unbalanced 20k ohm
Max Input	>+21dBu balanced or unbalanced
CMRR	>40dB, typically >55dB at 1kHz
Output Connectors	1/4" TRS, male XLR (pin 2 hot)
Output Type	Impedance-balanced/unbalanced, RF filtered
Output Impedance	Balanced 100 ohm, unbalanced 50 ohm
Max Output	>+21dBu balanced/unbalanced into 2k ohm or greater; >+18dBm balanced/unbalanced (into 600 ohm)
Bandwidth	20Hz to 20kHz, +0.5/-1dB
Frequency Response	<10Hz to >50kHz, +0.5/-3dB
Dynamic Range	Typically >112dB
Signal to Noise Ratio	Typically >95dB
THD+Noise	<0.003%
Interchannel Crosstalk	<-90dB, 20Hz to 20kHz
Bypass Switch	Bypasses the graphic equalizer section in the signal path
Low cut Switch	Activates the 50Hz 12dB/octave high-pass filter
Range Switch	Selects either +/- 6dB or +/-12dB slider boost/cut range
Operating Voltage	100-240VAC 50/60Hz
Power Consumption	15W
Power Connector	IEC receptacle
Unit Weight	4.8 lbs.(2.2 kg)
Shipping Weight	6.2 lbs.(2.8kg)
Dimensions	1.75" (4.4cm) H x 6"(15.24cm) D x 19" (48.26cm) W