HardwareQuattroUsed by 1 personcarlmartin.com ↗“I've got a Carl Martin Quattro pedal, which is my primary effect chain.”Zed Shaw Interview, Developer, writer and musician · via Uses ThisPeople who use Quattro also useawesome1Bass VI1Boomerang III1C1Classic S1Comanche1Deluxe Varitone1Dexy1