DBX 231s Dual Channel 31-Band Equalizer

SKU: DBX231S MFR: 231S
DBX 231s Graphic Equalizer: Picture 1 thumbnail DBX 231s Graphic Equalizer: Picture 2 thumbnail

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About DBX 231s Graphic Equalizer

The dbx 231s is a dual channel equalizer which includes 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 quality, there's no longer any excuse for compromising your sound.

DBX 231s Graphic Equalizer Features

  • Dual channel, 31-band, 1/3-octave constant Q graphic EQ
  • Switchable boost/cut ranges of +/-6 or +/-12dB
  • 20mm non-conductive sliders
  • 12dB per octave, 3dB down at 50Hz low-cut filter
  • +/-12 dB input gain range
  • Front panel bypass switch
  • 4-segment LED ladders for monitoring output levels
  • XLR and 1/4" TRS inputs and outputs

DBX 231s Graphic Equalizer 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 Level
>+21dBu balanced or unbalanced
Input: 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 Level
>+21dBu balanced/unbalanced into 2k ohm or greater+18dBm balanced/unbalanced (into 600 ohm)
20Hz to 20kHz, +0.5/-1dB
Frequency Response
<10Hz to >50kHz, +0.5/-3dB
Dynamic Range
Typically >112dB
Typically >95dB
Interchannel Crosstalk
<-90dB, 20Hz to 20kHz
EQ Bypass
Bypasses the graphic equalizer section in the signal path
Low Cut
Activates the 50Hz 12dB/octave high-pass filter
Selects either +/- 6dB or +/- 12dB slider boost/cut range
Operating Voltage
100VAC-240VAC 50/60Hz
Power consumption
Mains Connection
IEC receptacle
Dimensions (H x D x W)
3.5" x 6" x 19" / 8.9 x 15.24 x 48.26 cm
6.2 lbs.(2.81 kg)
Mfr #
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