ButtKicker LFE Sonic Shaker Standard

The ultimate in low-end isolation. Lets you monitor your bass drum or bass guitar without airborne sound waves. Lets you feel as well as hear the sound. 4-ohm impedance. Prevents hearing loss for drummers monitoring electronic kits with headphones. Can give the entire band a tighter, more focused groove. 5-1/2" wide x 5-3/8" tall. Plugs into the speaker out of a power amp.