Frequency Response 3 dB from 60 Hz to 45 kHz ±0.5 dB from 65 Hz to 18 kHz ±1.0 dB from 65 Hz to 20 kHz; Height 14.7" (37.3 cm); Width 25.5" (64.8 cm); Depth 14" (35.6 cm); Weight 62 lb (28.2 kg) Shipping weight; Crossover Frequencies Three-way, high-order acoustic response @ 235 Hz and 2 kHz; Finishes Piano black or mahogany finish; High-frequency Driver Components 1" (2.5 cm) beryllium tweeter; Nominal Impedance 6 ohms (nominal) 3.6 ohms (minimum @ 90 Hz); Low Frequency Extension -10 dB at 36 Hz -6 dB at 49 Hz -3 dB at 60 Hz; Low frequency Driver Components Two 8" (20 cm) titanium cone woofers; Mid-frequency Driver Components 5 ¼"