Classic made in the USA 31 band EQ with rack mount bolts and washers and IEC power cable.

The DOD 831 Series II is a, professional, single-channel, 31-band graphic equalizer, rack-mountable unit known for its constant-Q design, balanced XLR and 1/4" I/O, 1/3 octave ISO frequency centers, and a switchable 50Hz low-cut filter, providing precise audio shaping for live sound or studio use, often found in older professional setups and prized for its solid build and sound quality. 

Key Features:

  • Type: 31-Band Graphic Equalizer (Mono).
  • Bands: 1/3 octave spacing, 31 frequency sliders.
  • Q: Constant-Q design, meaning filter bandwidth stays consistent across frequencies.
  • Connectivity: Balanced XLR & 1/4" inputs and outputs, with some models featuring impedance-balanced 1/4" outputs.
  • Filtering: Switchable 12dB/octave low-cut filter at 50Hz.
  • Chassis: 2-rack space, all-steel construction.
  • Power: Internal shielded power supply.
  • Origin: Made in the USA. 

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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Listed23 days 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
Brand
Model
  • 831 Series II
Finish
  • Gray
Categories
Year
  • 1990's
Made In
  • United States

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Synthervention Therapy

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Joined Reverb:2015

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