4 Dual cone woofers, video shielded, 2 way passive design, 8 ohm;15 - 150 Watts recommended power, 85Hz - 25KHz (+/- 3dB) frequency response, 89dB sensitivity;Digitally tuned bass reflex cabinet enclosure, hang tab on rear for mounting, acoustically transparent grill;Quick release raw wire speaker terminals, black ash wood grain veneer finish;Applications include surround sound, home theater and whole house audio