The ultimate in audio perfection, the ID1 series includes 3-Way and 4-Way speakers in tower, in-wall, and on-wall designs. Built to function as left and right mains, these speakers pump an ultra rich sound from deep bass to crystal clear highs. The ID1.IW combines dual 10" subwoofers with a 3-Way loudspeaker to create a high end, full range in-wall speaker for home theater purposes. Use a home theater processor or receiver to provide the subwoofer crossover and to operate the ID1.IW as part of a surround system.