MXR M281 Thump Bass Preamp Pedal

The MXR M281 Thump Bass Preamp Pedal is a tone-sweetening, signal-boosting, and altogether groove-enhancing machine. This pedal was conceived when the MXR design team and their in-house bass players discovered that the Echoplex Preamp's sonic secret sauce made for just as delectable a pairing with bass as it does with guitar. Using that circuitry as a foundation, the MXR team added a simple yet potent tone-shaping interface so that you can dial in the perfect bass sound for the stage and the studio.

Crafting the sound you need is easy. The Echoplex Preamp circuit conditions your signal with a carefully balanced EQ profile, and this pedal's tone controls let you take it from there. The Treble and Bass knobs cut or boost frequencies at 4 kHz and 40 Hz respectively, while the Mid knob cuts or boosts the midrange as set by the Frequency knob, from 250 Hz to 1 kHz. This range of frequencies was selected to give players maximum flexibility and minimal fuss when refining their bass signal.

Whether you need to punch up a solo, boost your signal in a live mix, or sculpt more edge into the sound of a passive bass, the Thump Bass Preamp packs incredible versatility into an MXR mini housing.

This pedal can be powered by a Dunlop ECB003 9-volt adapter, or the DC Brick, Iso-Brick, and Mini Iso-Brick power supplies (not included). It cannot be powered by a battery.

FEATURES:

• OUTPUT knob sets output level of effect
• TREBLE knob boosts or cuts high end frequencies at 4 kHz
• MID knob boosts or cuts midrange as set by FREQUENCY knob
• BASS knob boosts or cuts bass frequencies at 40 Hz
• FREQUENCY knob sets midrange frequency from 250 Hz to 1 kHz
• FOOTSWITCH toggles effect on/bypass (blue LED indicates on)