Height 11.8" (30 cm) Note; Width 28.9" (73.5 cm); Depth 13.8" (35 cm); Weight 52 lb (23 kg) Note; Crossover Frequencies 375 Hz, 2450 kHz; Enclosure Type Sealed; Finishes Piano Black or High Gloss Walnut; High-frequency Driver Components 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide; Nominal Impedance 8 Ohms; Input Connections Dual Sets of Binding Posts; Low Frequency Extension -10dB@34Hz -6dB@41Hz -3dB@50Hz; Low-frequency Driver Components Dual 8” (20 cm) Aluminum Cone, Cast-frame Woofers; Mid-frequency Driver Components 4" (10 cm) Aluminum Cone, Castframe Midrange; Recommended Amplifier Power 50-350;