The DOD 431 Series II is a single-channel, 31-band 1/3-octave analog graphic equalizer designed for professional audio, live sound, and studio applications.

Key Features

  • 31 Frequency Bands: Features 31 precision bands on 1/3-octave frequency centers for surgical tone shaping and feedback control.
  • Boost and Cut Control: Provides 12 dB of boost or cut for each frequency slider.
  • Low-Cut Filter: Includes a built-in low-cut (high-pass) filter at 50Hz with a 12dB/octave slope to eliminate unwanted low-end rumble.
  • Input Gain Control: Features an adjustable input level control to match various external signal levels.
  • Bypass Switch: Equipped with an active in/out bypass control utilizing electronic switching to minimize loud pops or transients.

Connections and Build

  • Inputs and Outputs: Offers balanced XLR and 1/4" connectors using low-noise circuitry, with 1/4" jacks that also accept unbalanced plugs.
  • Form Factor: Built into a sturdy, single-space (1U) rack-mountable metal chassis.
  • Power Supply: Features a reliable internal power supply and fully shielded internal transformer for quiet operation.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed12 hours ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
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Model
  • 431 Series II
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Synthervention Therapy

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