Origin Effects Revival Drive CompactThe RevivalDRIVE Compact is a versatile overdrive that captures the authentic tone, feel and response of a range of classic non master volume valve amps. Inside, it houses an unabridged valve amp signal path recreated in analogue electronics, including the preamp, phase inverter, push pull power amp and rectifier stages plus a speaker emulating reactive load. By altering the way these stages behave and interact, the RevivalDRIVE Compacts user friendly