DOD Performer 525-A Compressor Limiter

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DOD Performer 525-A Compressor Limiter pedal

The DOD 525-A Compressor Limiter (part of the late 1970s/early 1980s Performer Series) shares circuit design philosophy and components with other pedals in that series, specifically regarding its 18V-20V power operation, buffer stages, and utilization of Operational Transconductance Amplifier (OTA) technology. The Performer-series pedals are often overlooked because they are not FX-series boxes, but they still deliver the practical, musician-first mentality DOD was known for. In fact, the 525-A Known for its high-headroom, studio-quality sound. It is highly regarded for adding presence and a unique, warm, and musical tone to electric guitars.

  • Controls: Com/Lim (Compression/Limiter) Attack, Output.

  • List price: (Needs confirmation)

  • Technical info:
    • Power: Two 9V batteries or a 20V DC negative ground power supply.

    • Specifications: CA3094 OTA (Operational Transconductance Amplifier) based design. Like the 575 Flanger, 585 Delay, and 595 Phasor, the 525-A was designed to operate with higher headroom than standard 9V pedals (see power requirements above).

    • Component Variations: There are known minor revisions within the 525 series (525 vs 525-A), with some versions using the CA3094 OTA, while others use the CA3080 OTA.

    • Notable IC chip: 1458 IC for input/output buffering

    • Component-side circuitboard image: here

  • Performer heritage: 525-A Divider icon 525 Divider icon FX80B (Loosely based)


  • How players actually use it:
    • Clean leveling: Set for gentle compression so chords stay even without the "pumping" effect.

    • Sustain helper: A little more compression makes single notes hang on longer, especially on clean to edge-of-breakup amps.

    • Pre-drive tightener: Placing it before an overdrive can keep your picking consistent and help solos feel more controlled.

  • Suggested starting settings:
    • Always-on balance: Moderate compression, output set to match bypass volume.

    • Chicken pickin' / funk: Faster response, enough compression to clamp peaks, output slightly boosted.

    • Smooth lead sustain: Higher compression, output matched, listen for noise and back off if needed.

    • Limiter feel: Set to catch only the hardest peaks so your dynamics stay natural but controlled.

  • Collector notes:
    • Performer Series pedals often sell for reasonable money, which makes them fun "working collection" pieces - you can actually gig them.

    • Check the usual suspects: scratchy pots, intermittent jacks, and battery-door condition (if applicable to this enclosure style).

    • Boxes, paperwork, and clean labels are where the value bump usually shows up.

  • Known quirks and tips:
    • Like most compressors, more compression usually means more audible noise. If you hear hiss, back the compression down first, then compensate with level.

    • A clean power source helps. Compressors can make bad power sound worse because they amplify quieter details.

    • If you are stacking with drive pedals, try it both before and after. Before tightens picking, after can behave more like a limiter.

    Hear the DOD Performer 525-A Compressor Limiter in action:


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