KLH 18BHG 8 2-Way 140 Watt Bookshelf Speakers (Pair, High Gloss Black) 8" woven fiberglass woofer 7/8" polycarbonate Tweeter Suggested Amplfiier Power: 5-140 Watts Magnetically Shielded to Prevent Video Distortion Frequency Response: 48 Hz - 20 kHz