Klipsch Heresy III Heritage Series Floorstanding Speakers - Pair (Cherry) A threeway design using hornloaded Titanium diaphragm midrange and high frequency compression drivers. Directradiating 12inch woofer for powerful low frequencies 99 dB sensitivity delivers Smooth, dynamic and low distortion sound Designed & Assembled in the USA Frequency Response: 65Hz20kHz3dB (preliminary)