• MXR M81 Bass Preamp

MXR M81 Bass Preamp


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Product details

The MXR M81 Bass Preamp combines a pristine bass preamp with a studio-quality Direct Out in a Phase 90-sized box, providing clear tone without hogging precious pedalboard space. Use it to add a new voice to an old passive bass, sweeten up any amp, or put some special sauce on a particular song. Dial it in just the way you want it and send it straight to the house—pre or post-EQ.
The Bass Preamp features separate Input and Output level controls and a 3-band EQ section with sweepable midrange—from 250hz to 1khz—for extensive tonal flexibility. It’s all delivered super clean with high headroom thanks to our own Constant Headroom Technology, and you can use the Pre/Post EQ switch to set whether or not your Direct Out signal is affected by the Bass Preamp’s EQ section. And of course, the Bass Preamp features a Ground Lift switch in case you encounter ground loop hum.
The Bass Preamp is factory preset to operate in buffered bypass with both the EQ section and Direct Out section active. For players who only want to use the EQ section, there is an internal switch that disables the Direct Out and engages true bypass mode.


•    Constant Headroom Technology™ provides super clean tone
•    3-band EQ with sweepable midrange
•    Studio-quality Direct Out
•    Pre/Post EQ switch for Direct Out signal
•    Ground Lift switch
•    Quiet operation




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