Description
The Ernie Ball Expression Overdrive puts your drive tone under real-time foot control, turning a static gain stage into something you shape mid-phrase. Rock the treadle back and your signal stays clean and unaffected; push it forward and you dial in overdrive and boost together, climbing from a light tube-amp push into rhythm crunch and on into thick, singing lead saturation. It’s built for players who want dynamic control without tap-dancing on a knob mid-song — sweep it live for swells, or park it anywhere in between for a fixed voicing.
Dedicated Overdrive, Tone, and Boost controls let you set the outer limits of that sweep, so the expression pedal becomes a performance tool rather than a guess. Heel-down keeps your original signal untouched for clean passages; toe-down slams in maximum overdrive and boost level for solos that need to cut through a full band mix. On a pedalboard, it works well positioned where you’d normally reach for a drive pedal, but with the added benefit of hands-free gain riding.
- Mono In / Mono Out signal path
- 9V power input
- Overdrive, Tone, and Boost level controls
- Foot sweep heel down: original signal, no effect
- Foot sweep toe down: full overdrive and boost engagement
This unit is offered as Open Box, Mint condition — previously boxed but unused, in excellent cosmetic and functional shape, ready to go straight onto your board.






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