For pro expression control in a compact package, there’s no better choice than the BOSS EV-30. Its small footprint is perfectly suited for cramped pedalboards, while the die-cast aluminum chassis offers a rock-solid foundation and BOSS’s famous rugged reliability.
A key feature of the EV-30 is an innovative internal mechanism that provides ultra-smooth feel and precise parameter control, delivering performance that rivals full-size pedals. And with two expression outputs, you can save further space by controlling two different devices from a single pedal. The outputs are electronically isolated, eliminating the possibility of noise issues from ground loops.
The EV-30 brings powerful real-time parameter control to the many BOSS compact pedals equipped with expression pedal inputs. It’s also ideal for use with BOSS multi-effects processors and effects switching systems. A handy polarity switch provides compatibility with a wide range of music gear, allowing you to use the EV-30 with most devices that support expression control.

Space-saving expression pedal with a rugged die-cast aluminum body
Silky feel and smooth pivot for precise parameter control
Isolated dual expression outputs for controlling two devices with one pedal
Independent pedal range adjustment for each output
Works with ¼-inch TRS expression inputs on stompbox pedals, multi-effects, keyboards, MIDI controllers, and more
Polarity switch provides compatibility with most devices that support expression control
Shares the same rugged, space-saving design of the FV-30H/L volume pedals and PW-3 wah
Includes ¼-inch TRS (stereo) cable