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Beta 3®

Beta 3® EQ2231 3U 30 Band Constant Q Stereo Graphic Equalizer

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  • $438

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Front Panel

  • 2 x 30 constant Q faders ±15dB control range
  • 9 x segment signal output LEDs
  • Gain control
  • High pass filter up to 250Hz
  • Low frequency shelf filter ±6dB of gain at 50Hz
  • High frequency shelf and filter ±6dB gain 14kHz
  • EQ bypass switch

Rear Panel

  • 2 x Balanced XLR input connectors
  • 4 x Balanced XLR output connectors
  • 6.5mm inputs and outputs connectors
  • Phoenix inputs and output connectors


  • EQ filter is bypassed if fader is in centre indent position
  • In the event of power failure a high quality relay switch sends input signal directly to output connectors
  • Power-on delay for soft start

Input Impedance: 10kΩ Balanced and Unbalanced

Overloaded Electromotive Force: 8.5V

Frequency Response (±1dB): 5Hz-45kHz

Harmonic Distortion: <0.008% THD 20-20kHz

S/N Ratio: >92dB

Max. Output Level: 9.5V

Output Impedance: <50Ω

Dynamic Range: >115dB

Crosstalk: >85dB @ 1kHz

Frequency Control: >±15dB on ISO center Q value for 4

Net Dimensions:  19″ x 10″ x 1.8″

Net Weight: 10.4 lbs.

Gross Dimensions:  21″ x 11.5″ x 8″

Gross Weight: 13.9 lbs.