L.R. Baggs M1 Series Acoustic Guitar Active Soundhole Magnetic Pickup - Left HandedThe L. R. Baggs M1A L M1 Active Left Handed Pickup has built in all class A electronics that eliminate the need for any external preamps. Makes the M1 Active Left Handed Pickup compatible with any outboard equipment. The volume control gives you fingertip access in any performing situation. The M1 Active is a humbucking pickup with a twist. In a common stacked humbucker, the second, lower coil cancels hum, but doesn't contribute anything positive to