Description
The Ampeg Opto Comp brings studio-grade optical compression to the pedalboard, using the same light-dependent circuit topology found in high-end rack compressors. Instead of a hard, clamped squash, the optical design reacts to your playing dynamics in a smooth, program-dependent way — evening out slap peaks, taming loose fingerstyle transients, or adding sustain to a fading note without ever sounding choked.
Ampeg kept the control set deliberately simple: two knobs handle the compression character, so you can dial in anything from a barely-there polish to an obvious, breathing pump that locks into the groove. A dedicated output knob lets you restore the level lost to compression (makeup gain), keeping your signal punchy and consistent as it heads into the rest of your chain.
Placement-wise, the Opto Comp works well early in a bass signal chain — ahead of drive, EQ, or modulation — where it can normalize your dynamics before those effects react to your input level. It’s equally at home running quietly in the background for studio-clean low end or pushed harder for a vintage, sustained tone that sits forward in the mix.
- Optical compression circuit for smooth, vintage-style response
- Two knobs control the compression character
- Output knob dials in makeup gain to keep volume consistent
Built for bassists who want their dynamics shaped, not squashed — the Opto Comp fits neatly into any pedalboard chasing a more controlled, musical low end.









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