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 231s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.
The dbx 231s includes two 31-band channels 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 112 dB dynamic range to the quality componentry and meticulous attention to detail, the 231s 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 231s 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.
Specifications
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
6.2 lbs.(2.81 kg)
Shipping Weight
7.9 lbs.(3.58kg)
Dimensions
3.5″ (8.9cm) H x 6″(15.24cm) D x 19″ (48.26cm) W
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