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dbx 231s Dual 31-Band Graphic Equalizer

Brand:|Model: 231S|Part # 246-145
The dbx 231s offers exceptional sound and rugged reliability that guarantees you will always sound your best.
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List Price$249.94
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Part # 246-145
  • Dual 31-band, 1/3-octave Constant Q frequency bands
  • Switchable boost/cut ranges of ±6 or ±12 dB
  • Front panel bypass switch
  • ±12 dB input gain range
  • 4-segment LED ladders for monitoring output levels
  • XLR and TRS inputs and outputs
  • Dynamic range of greater than 108 dB

Product Details

dbx 231s Dual 31-Band Graphic Equalizer

With over four decades in the business, dbx sets the standards for touring, studios, and audio installations. When it comes to EQs, dbx is who the pros turn to. 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 offers exceptional sound and rugged reliability that guarantees you will always sound your best.

The dbx 231s features • two 31-band channels of 1/3-octave equalization • ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range • 20 mm nonconductive sliders • an intuitive user interface • output level metering. From its extended 10 Hz to 50 kHz frequency response and 112 dB dynamic range to the quality and meticulous attention to detail this EQ is second to none! 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.

Inputs: • Connectors: 1/4" TRS, female XLR (pin 2 hot) • Type: Electronically balanced/unbalanced, RF filtered • Impedance: Balanced 40k ohm, unbalanced 20k ohm • Max input level: >+21 dBu balanced or unbalanced • CMRR: >40 dB, typically >55 dB at 1 kHz

Outputs: • Connectors: 1/4" TRS, male XLR (pin 2 hot) • Type: Impedance-balanced/unbalanced, RF filtered • Impedance: Balanced 100 ohm, unbalanced 50 ohm • Max output level: >+21 dBu balanced/unbalanced into 2k ohm or greater • >+18 dBm balanced/unbalanced (into 600 ohm)

Function Switches: • EQ Bypass: Bypasses the graphic equalizer section in the signal path • Low cut: Activates the 50 Hz 12 dB/octave high-pass filter • Range: Selects either +/- 6 dB or +/- 12 dB slider boost/cut range

Overall System Specifications: • Bandwidth: 20 Hz to 20 kHz, +0.5/-1 dB • Frequency response: <10 Hz to >50 kHz, +0.5/-3 dB • Dynamic range: Typically >112 dB • Signal-to-Noise: Typically >95 dB • THD+Noise: <0.003% • Interchannel crosstalk: <-90 dB, 20 Hz to 20 kHz • Operating voltage: 100 VAC-240 VAC 50/60 Hz • Power consumption: 15 watts • Mains connection: IEC receptacle • Weight: 6.2 lbs. (2.81 kg) • Dimensions: 3.5" H x 6" D x 19" W (8.9 x 15.24 x 48.26 cm).

dbx 231s Dual 31-Band Graphic Equalizer
  • Branddbx
  • Model231S
  • Part Number246-145
  • UPC691991401206
  • Product CategoryEqualizers
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight8 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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dbx 231s Dual 31-Band Graphic Equalizer
dbx 231s Dual 31-Band Graphic Equalizer is rated 2.3333 out of 5 by 3.
Rated 1 out of 5 by from DBX 231sI bought one of these from another company. Sent it back because it was too noisy, and bought another more expensive DBX Dual 31 band EQ.
Date published: 2015-09-25
Rated 4 out of 5 by from Does the jobDecent and clean enough for my uses. Helps me balance the hodgepodge of equipment I have gathered over the years and get a good overall result. Also road worthy and wallet friendly.
Date published: 2014-11-10
Rated 2 out of 5 by from Don't really like it..........Biggest problem I see which I didn't notice before I bought it is the 50hz 12db filter? Why in the world would a company want to filter a full octave (and more) of low bass out when most speakers roll off the low bass anyway. A 20hz filter is what's needed. It also clearly sounds better through the XLR interfaces vs the TRS outputs which seem to not generate enough output and has a slight hiss.I'm going to keep it but had I known I would have looked for a better unit. Filtering low bass below 50hz out is the most ridiculous thing I've ever heard off for an audio company to do.
Date published: 2014-09-25
  • 2016-02-09T06:35CST
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Product Q&A

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dbx 231s Dual 31-Band Graphic Equalizer

Hi, What is the specification for the DBX231 sliding potentiometer?

Asked by: Aldrin
Unfortunately we do not have specific details on the faders for this EQ, you will have to contact DBX directly.
Answered by: MattP
Date published: 2015-09-01
  • 2016-02-09T07:12CST
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