The Model 355 Dual 31-Band 1/3 Octave Graphic Equalizer may be used in a variety of applications such as live sound, recording studios, instrument racks, DJ sound systems and fixed equipment installations. Designed to interface into any audio system, the Model 355 is a powerful tool for solving audio problems and creating interesting sound textures. 

The Model 355 possesses a long list of impressive features including: constant Q circuitry, 20mm center detent sliders (with a selectable boost/cut range of 6dB or 12dB), balanced XLR and 1/4" and unbalanced RCA input and output connections, adjustable high pass and low pass filters, variable input level controls, signal clip level indicators, ground lift switch, internal power supply and selectable line voltage switch. The rugged, all-steel constructed chassis occupies 2U rack spaces and is intended for installation into standard 19" equipment racks. 

The 355 Dual Channel 31 Band EQ has the features and performance you need for any of your audio applications requiring precise equalization. 


  • Dual Channel 31-Band Graphic Equalizer

  • Constant-Q Filtering

  • Balanced XLR, Active Balanced 1/4", and Unbalanced RCA Input and Output Connectors

  • Variable High-Pass and Low-Pass Filters

  • +/- 6dB or +/-12dB Level Adjustments

  • 20mm Center Detented Frequency Band Sliders

  • Independent Level and Bypass Controls Per Channel

  • Designed for Years of continuous, reliable performance

  • Rugged All Steel Construction

  • One Year Warranty


  • Filter Type: Constant Q, 3% center accuracy

  • Frequency Bands: 31, 1/3 octave, ISO spacing

  • Frequency Response: 20Hz to 20kHz, +0.5dB

  • High Pass Filter: 10Hz to 250Hz, 12dB/oct

  • Input Impedance: 20k ohms (bal), 15k ohms (unbal)

  • Input/Output Connections: Active balanced XLR and 1/4" TRS {XLR pin 2, 1/4" tip = Hot (+)} Unbalanced RCA

  • Low Pass Filter: 3kHz to 40kHz, 12dB/oct

  • Maximum Input Level: +22dBm

  • Maximum Output Level: +18dBm (bal), +22dBm (unbal)

  • Output Impedance: 150 ohms (typ)

  • Power: (Switchable) 95-130VAC, 50/60Hz, 22 watts (USA)

  • Range: +/-6dB or +/-12dB selectable

  • Signal to Noise Ratio: 94dB

  • Slider Travel: 20mm w/ positive center detent

  • Total Harmonic Distortion: 0.01%

  • Dimensions: 3.5"x 19"x 8.5"

  • Weight: 9.0lbs / 4.1kg 

SALE: $239.99

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • PowerMix III 3-Channel Personal Mixer
Made In
  • Canada
  • Analog
  • Solid State

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Palm Coast, FL, United States
Joined Reverb:2016

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