Detail 01
Two electronically isolated expression outputs
One pedal can control two devices, with isolation intended to prevent ground-loop noise issues.

Independent shopping perspective
The BOSS EV-30 is a compact dual expression pedal for real-time parameter control. Its two expression outputs allow one pedal to control two devices, helping conserve pedalboard space, and the outputs are electronically isolated to avoid ground-loop noise issues. The internal mechanism is designed for smooth, precise movement, while the die-cast aluminum chassis provides the pedal's foundation. A polarity switch broadens its use with gear that supports expression control, including compatible BOSS compact pedals, multi-effects processors, and switching systems.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
One pedal can control two devices, with isolation intended to prevent ground-loop noise issues.
Detail 02
It supports use with a wide range of gear that accepts expression control.
Detail 03
The pedal uses a die-cast aluminum chassis.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. It has two expression outputs, so a single pedal can control two different devices.
Yes. They are electronically isolated to eliminate the possibility of noise issues from ground loops.
Its polarity switch is intended to provide compatibility with a wide range of gear that supports expression control.