The Ethos Clean Fusion Deluxe MRFS-1 Foot Switch provides remote switching control of the D-Channel's 3 position ACCENT Toggle Switch. When the ECFD toggle switch is set to its center position, the MRFS-1 can select the MID, BRITE or both MID and BRITE, D-Channel circuits. The MID circuit lowers-shifts the TREBLE control's corner frequency adding rich MID's. The BRITE circuit adds high frequencies where highs are greater with lower GAIN control settings and decreases as the GAIN control is increassed.