EV-10, FV-300: Using the FV-300/EV-10 as an Expression Pedal May 19, 2023 03:03 Updated Follow In order for the FV-300 or EV-10 pedals to function as an expression pedal, you must use a stereo TRS (tip-ring-sleeve) cable. Related articles RE-2: How To Connect and use an External EV Expression Pedal Roland EV-5 - Volume Knob Adjust SPD-SX PRO: What kind of expression pedal can I use? BOSS PSA adaptor: Specification Differences by Model R-MIX: How to Remove Backing Music (Instruments) So That Only the Vocal Remains