DESC: The Buttkicker Mini Concert Sonic Shaker drastically reduces the need for airborne lows from subwoofers. Excellent with in-ear and studio monitors. Superb for monitoring drums, bass, guitar, and keyboards. Amazing in the studio with headphones. Weighs under 2 lbs. and requires less than 200W @ 2 ohms. Mounts easily to thrones and seats and gives you a value alternative to the Concert model.