The J. Rockett Mark Sampson Max brings together a deceptively simple two-knob design of Boost and "Chime" (harmonics) which work in tandem to ladle your signal with decibels and an expanded presence on the sonic spectrum. Serving double duty as a straight boost or delicious preamp, this is an effect billed as an "always on" pedal that you'll actually want to always leave on when hearing your guitar or bass played through it.