Description
The MXR M81 Bass PreAmp squeezes serious tone-sculpting power into one of the smallest footprints on your board—no bigger than a Phase 90. It’s built for players who want a real preamp stage in front of their amp, not just another EQ pedal, giving passive basses a fresh voice and adding polish to amps that need a little more character.
- Studio-quality Direct Out for sending your signal straight to the front-of-house mixer
- Switchable pre/post-EQ routing on the Direct Out, so what the sound engineer hears matches (or differs from) what’s coming out of your amp
- Compact, Phase 90-sized enclosure that won’t crowd out your other stomps
Place it early in your chain to shape your fundamental tone before drive or modulation pedals color it, or use it as a dedicated line-out solution when you need reliable DI performance without hauling a separate box to the gig. Whether you’re dialing in a subtle sweetening for a clean tone or crafting a specific voice for one particular song in the set, the M81 gives you the control to get there and send it out clean.






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