The MXR 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—with the built-in Direct Out.
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 ¼” out buffered bypass
and Direct Out active. For players who only want to use the ¼” out,
there are two internal switches that disable the Direct Out and ¼” out
buffered bypass for true ¼” out bypass mode.
