Net Weight 58 lb (26 kg); Crossover Frequencies 275 Hz, 2150 Hz; Enclosure Type Bass-reflex via Front-firing Port; Finishes Piano Black, Piano White, or High Gloss Walnut; High-frequency Driver Components 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide; Nominal Impedance 8 Ohms; Input Connections Binding Posts; Low Frequency Extension -10dB@30Hz -6dB@36Hz -3dB@42Hz; Low-frequency Driver Components Dual 6.5” (16.5 cm) Aluminum Cone, Cast-frame Woofers; Mid-frequency Driver Components 5.25” (13.3 cm) Aluminum Cone, Cast-frame Midrange; Recommended Amplifier Power 50- 200" Sensitivity 88dB; Dimensions 41.4" x 9.8 " x 13.6"