Height 13.5" (34.3 cm); Width 15.8" (40 cm); Depth 8.5" (21.6 cm); Net Weight; Crossover Frequencies 1.4 kHz; Enclosure Type Sealed; Finishes Matte Black; 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@52Hz -6dB@58Hz -3dB@65Hz; Low-frequency Driver Components Dual 6.5” (16.5 cm) Aluminum Cone, Cast-frame Woofers; Recommended Amplifier Power 50-150; Sensitivity 89dB