Aerolite Comp is designed to bring you the greatest compression effect together with retained infinite sustain of the original tone! Aerolite Comp is equipped with an INPUT switch with High, Middle and Low adjustment settings; the Comp control sets the amount of compression and sustain; and ATTACK controls the dynamic and touch-sensitive attack. Use the MIX to blend the compressed signal with your original signal to get an ideal tone: one with superb compression that retains with infinite sustain of your original tone. With MIX turned all the way down, the Aerolite can function as a clean boost for your guitar, bass or other instrument. True Bypass design minimizes tone loss.