Woofer: 15 in. Tweeter (diaphragm): 1 in. titanium Frequency Response (-10dB): 60Hz-20kHz Power Handling (noise*/program/peak): 200/400/800 Watts Nominal Impedance: 8 ohms Nominal Dispersion: 90° H x 40° V C.D. Sensitivity (1W, 1m): 98dB Input Connectors: 2 x ¼ in. Phone Dimensions (Approximate W x H x D): 19 in. x 25 3/4 in. x 14 1/2 in. Weight: 46.9 lbs. *(EIA RS426)