Fluance AVHTB+ Surround Sound Single Speaker AVSS System Type: 2 Way - 2 Driver Surround Speakers Woofer\Midrange: 4.0 inch Poly-coated Driver Tweeter: 3/4 inch Titanium Soft Dome Ferrofluid Cooled For Longer Life Power Handling: 10 - 100 Watts Frequency Response: 70 - 20K Hz