mxr Thump - External Controls; Control Layout and Functions

M281 | Thump
™
Bass Preamp 2
1 OUTPUT knob sets output level of effect
2 TREBLE knob boosts or cuts high end frequencies at 4 kHz
3 MID knob boosts or cuts midrange as set by FREQUENCY knob
4 BASS knob boosts or cuts bass frequencies at 40 Hz
5 FREQUENCY knob sets midrange frequency from 250 Hz to 1 kHz
6 FOOTSWITCH toggles effect on/bypass (blue LED indicates on)
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External Controls
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