Each 201 speaker includes a long excursion 6-1/2 woofer and a highly sensitive 2 Stereo Targeting tweeter * Proprietary Stereo Everywhere technology combines direct and reflected sound to deluge the room with beautiful sound * Unique port geometry for clean bass * Compact size and horizontal for flexible placement options * Perfect as front or rear home theater speakers, along with a BOSE VCS-10 center channel & BOSE 161 surrounds ? or a second pair of 201s