The Classic rack MP-1 from ADA was revolutionary in it's tone and useage. The classic sound is back now in a pedal format and available from ADA ! Imagine having the classic ADA MP-1 tone available on your pedal board. The new ADA MP-1-CHANNEL is a pedal version of the renowned MP-1 rack mount guitar preamp. The MP-1-CHANNEL employs the 4-stage vacuum tube design taken from our ground breaking MP-1 MIDI TUBE PREAMP to achieve the same rich tone that made it the staple for most of the touring bands in the late 1980s and early 1990s. The small package, a 12-volt power requirement and a true bypass switch make the MP-1-CHANNEL easy to integrate into your pedal board system.