From MXR:

“The FOD Drive supplies the sonic power of two highlysought-after amp stacks in a single housing, eachpainstakingly recreated so that you can dial in just theright sonic signature for each side and blend the twosounds together to your tonechasing taste.

Controls:

• BLEND knob sets mix of High Gain and Crunch Gain circuits
• OUTPUT knob sets overall volume
• GAIN knob sets intensity of High Gain circuits overdrive
• SCOOP switch selects flat, scooped, or boosted midrange frequencies
• TONE knob controls overall EQ
• FOOTSWITCH toggles effect on/bypass (clear blue LED indicates on)”

Brand new.