Acoustic Audio T16 Bookshelf Speakers (Black) 6.5" Polypropylene cone 8 ohm woofers, video shielded, wide dispersion horn with 1" pies tweeters 15 - 150 Watts recommended power per pair, 45Hz - 20KHz (+/- 3dB) frequency response, 91dB sensitivity Digitally tuned bass reflex cabinet enclosures, 2 way passive design, hang tabs on rear for mounting Quick release raw wire speaker terminals, acoustically transparent grills, black ash wood grain veneer finish Applications include home theater, surround sound system and whole house audio