Roland EV-30 Dual Expression PedalDesigned to conserve valuable space on cramped pedalboards, the EV 30 from BOSS is an expression pedal which provides variable control over two different devices from one pedal. The EV 30 utilizes a die cast aluminum chassis to ensure durability, and provides an internal mechanism to offer a smooth feel while actuating precise parameter control. Both 1 4" TRS outputs are electronically isolated to protect against the noise issues that often stem from