Photos shown are of the product on hand

Serial Number: EW57GB-10039

Power cable included

The 231 is a dual channel, 31 band 1/3 octave graphic equalizer which features constant Q circuitry, housed in a two space rack. The sliders are 45mm center detent, with 12 dB of boost and cut for each slider.

The unit provides active balanced input and output connections, high pass filters, bypass switches for each channel, and an internal power supply. Electronic switching of the bypass minimizes switching transients, such as loud pops or clicks when the switch is depressed. The 231 fully shielded internal transformer provides extremely quiet operation, and multiple input and output configurations are provided for ease of use. The XLR and 1/4" TRS connectors use active balanced, low noise circuitry, while the 1/4" connectors will also accept an unbalanced plug.

The input level control covers a wide range, thus allowing the unit to work with a variety of signal levels. Output levels can be monitored on each channel by four-LED peak-reading bar graphs. The 231 may be used in a variety of applications such as live sound, recording studios, instrument racks, as well as any conventional fixed installation environment.

  • Frequency Response: 20Hz to 20kHz, =0/-0.5 dB
  • Low Cut Filter: 12 dB/ octave roll-off, 3 dB down at 50 Hz switchable in or out.
  • Frequency Center Tolerance: 5%
  • Control Range: 12 dB cut/ boost
  • Recommended Operating Level: -10 dBV to +4 dBu
  • Input Impedance: 40k Ω balanced, 20k Ω unbalanced
  • Maximum Output Level: +21 dBu (balanced or unbalanced)
  • Input Level Control: +/-12 dB
  • Input Level Indicator: LED bar graph; -10,0,+10, and +17
  • Harmonic Distortion: .006% @ 1 kHz
  • S/N Ratio: Greater than 90 dB (ref. 0.0775Vrms)
  • Electronic Switching: In/Out and Filter switches (FET type)
  • Dimensions: 1.75”x6”x19”

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Southside Guitars Brisbane
16 Chrome Street
Salisbury, QLD 4107
Australia

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Listed4 days ago
ConditionFair (Used)
Fair condition gear should function but will show noticeable cosmetic damage or other issues.Learn more
Brand
Model
  • SR 231 Q
Finish
  • Black
Categories
Year
  • 1996
Made In
  • United States

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Southside Guitars

Salisbury, Australia
Joined Reverb:2026

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