DOD R-830A Dual-Channel 15-Band Graphic Equalizer Rackmount EQ 1988–1990

The DOD R-830A is a dual-channel 15-band graphic equalizer built for precise tone shaping in live sound, studio, and installed audio systems. Each channel provides detailed control across the frequency spectrum with ±12 dB of boost or cut per band, making it ideal for room correction, feedback control, system tuning, or shaping individual instruments and full mixes.

This unit features independent IN/OUT bypass switches, selectable low-cut filters, and dedicated output level controls for each channel. Both balanced and unbalanced inputs and outputs are provided, allowing easy integration into a wide range of professional audio setups. Known for its rugged construction and straightforward layout, the R-830A is a reliable workhorse EQ commonly found in PA racks and studios.

Condition:

This unit is in good to very good condition.

- Fully tested and working as it should

- Both channels pass signal correctly

- All sliders move smoothly and respond properly

- Switches and level controls function as expected, missing knob

- Cosmetic wear from normal rack use

- Rack ears intact

- Attached power cable

Store Policies:

- All items are tested before listing and again before shipping.

- Orders typically ship next business day.

- Shipping is available to the continental U.S. only.

- We do not accept trades on shipped items.

- Returns are accepted within 48 hours of delivery. The buyer covers return shipping, and a 20% restocking fee applies. If you have any questions before buying, feel free to message us—we’re happy to help.