The Ernie Ball Expression Tremolo pedal offers five waveforms (slow rise, slow fall, sine, square and harmonic), with depth, rate or both adjustable via its onboard treadle. There’s also a control to ...

MORE INFO: Ernie Ball releases versatile Expression Tremolo pedal. If you want to check out more videos from our hands-on series, then head on over to the hub page, featuring all the tech and ...