Guitarists have been using the Echoplex’s preamp to juice their tone for ages, and now — thanks to the MXR Thump — bassists can get in on the action. Besides injecting your playing with the natural mojo of its circuitry, this bass preamp pedal also supplies you with a 3-band EQ with an adjustable mid frequency. Whether you want to punch up a solo, boost your live signal, or give your passive pickups an aggressive edge, the MXR Thump is the tone-sweetening, signal-boosting, groove-enhancing secret sauce you’ve been searching for.