DOD R-431 Graphic Equalizer • Used
Looking for a reliable 1/3-octave EQ to shape your live mix, tune a room, or manage feedback in your rack rig? This pre-owned DOD R-431 Graphic Equalizer delivers precise frequency control and rugged, workhorse performance in a space-saving 1U chassis. Featuring ISO-centered frequency control sliders, it gives you deep control over your audio spectrum without taking up precious rack real estate.
Condition is Good overall. The unit exhibits significant cosmetic surface wear, scratches, and rack rash on the chassis and faceplate from standard rack mounting and use over time. However, this cosmetic wear is strictly visual and does not affect operation—all sliders, switches, and audio pathways have been thoroughly tested and function smoothly exactly as they should.
Our audio technicians have fully bench-tested this unit, verified clear signal flow, cleaned slider potentiometers, and confirmed proper operation of all filter networks and bypass circuits.
Specifications
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Model: DOD R-431
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Type: Graphic Equalizer (1/3 Octave)
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Condition: Good (Cosmetic surface wear/rack rash; 100% functional)
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Rack Space: 1U Rackmount
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Frequency Response: 20 Hz – 20 kHz
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Boost/Cut Range: Selectable ±6 dB or ±12 dB
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Inputs: 1/4" TRS / XLR
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Outputs: 1/4" TRS / XLR
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Controls: Level Control, Low-Cut Filter Switch, EQ Bypass Switch, Range Selector
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Indicators: LED Power, Clip/Peak Level LEDs
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Power Supply: Internal AC (Standard IEC power cable included)
Condition Notes
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Good overall cosmetic condition with significant surface wear and rack rash on the outer chassis and faceplate
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Control layout and markings remain clear and legible
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All frequency sliders, gain pots, and switches function smoothly without scratchy noise or signal drops
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Audio inputs and outputs tested clean with zero unexpected noise
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Bench-tested and 100% operational
Professionally Inspected & Ready for Service
Every pre-owned piece of pro audio gear at BCR Music & Sound undergoes a complete technical evaluation before listing. We verify signal integrity, test all pots and jacks, check power supplies, and clean controls to ensure reliable performance on stage or in the studio.
Secure Packing & Shipping
We pack rack gear with extra care. Your unit will be padded with heavy-duty protective materials, secured against impact during transit, and fully insured. Buy with confidence knowing your gear will arrive safely and ready to plug in.