JBL CSB5 Cinema Sound 2-Way 5" Bookshelf/Wall-Mountable Satellite Speakers Power Rating: 40W min / 300W peak; Impedance: 8 Ohms; Frequency Response: 60Hz - 30KHz Woofer: 5" (130mm) Transducer with PolyPlas cone, neodymium magnet and HeatScape motor structure, video-shielded Tweeter: 3/4" (19mm) Titanium-laminate dome, video-shielded