This unique pedal design captures the lush, muscular power amp distortions of both class a and class a/b tube amps. the tones can be used individually or you can feed one into the other for massive â€˜cascading' distortion and limitless tonal variation. the 100% analog double drive 3x is a 3-channel, fully programmable version of its single channel predecessor and features active 3-band eq. the expanded tone section gives you even greater flexibility to create incredible and original tones. you can store three custom sounds, even on the fly, by simply tweaking the knobs and double-tapping on a footswitch. how easy is that? and, with both drives at minimum, you can program a clean boost up to 10db for blazing solos. sometimes more is more.