Used DOD R-830B GRAPHIC EQ Pro Sound Effect

DOD R-830B Graphic Equalizer

Overview:

The DOD R-830B is a dual-channel, 15-band rackmount graphic equalizer built for serious tone shaping in both live and studio environments. Known for its reliability and precision, this EQ gives you the ability to fine-tune your sound, smooth out problem frequencies, and dial in clarity with ease. Manufactured in May of 1994, this U.S.-made unit represents the solid build quality and clean sound DOD gear was known for during that era.

Features:

• Dual independent channels, each with 15 frequency bands for precise audio shaping
• Switchable low-cut filter per channel (12 dB/octave roll-off at ~50 Hz) to reduce sub-sonic rumble
• ±12 dB boost/cut per band for detailed tone control
• Balanced ¼″ and unbalanced input/output options for flexible setup
• Rugged 2U steel rack chassis built for stage or studio use

Condition:

This DOD R-830B is in very good condition, especially for a 1994 unit. The front panel shows only light rack wear and a few small scuffs from normal use, but all sliders, switches, and LEDs function perfectly. The internals are clean, the filters engage properly, and the EQ responds smoothly across both channels. A reliable, vintage piece of pro audio gear ready to add warmth and control to your mix or live rig.

✅ Item Condition & Testing

All used gear is fully tested when it comes into our shop and again before shipping, so you can buy with confidence. Any included accessories will be shown in the photos, and if there are any functional issues, they’ll always be noted in the listing. Since these are used items, you can expect normal cosmetic wear that doesn’t always show up clearly in pictures. Everything we sell is also available to try in-store, so a little extra demo wear may be present.

? Shipping Info

We ship to the contiguous 48 states with flat-rate pricing that usually covers the maximum cost (including insurance). If the shipping looks high, send us your ZIP and we’ll get you a more accurate estimate. Orders outside the lower 48 may require additional processing and shipping costs — please reach out before ordering.

Some larger or fragile items (like big amps, drum kits, or cabs) may not have a shipping option listed because they’re safest for local pickup. If you’re not sure, just contact us and we’ll confirm if it can be shipped.

↩️ Returns

You have 48 hours from delivery to let us know if you’d like to return an item. Buyer covers return shipping, and a 20% restocking fee applies per store policy. If you’re unsure about an item, feel free to message us first — we’re happy to answer questions and make sure you’re confident before purchasing.

? Order Issues

If your order isn’t going through, check that your billing and shipping addresses match — that’s the most common issue. If you run into any problems, reach out and we’ll help you get it sorted.

We want you to feel great about your purchase, so don’t hesitate to contact us with any questions before ordering!