Available Finishes: Walnut, Diamond Black, Oak, White Silk Crossover Frequency: 1.7kHz Dimensions: H 410mm (16.1 ) x W 192mm (7.6 ) x D 373mm (14.7 ) incl. binding posts (+9mm grille) Drive Units: LF PMC 6.5 170mm long-throw g-weave cone with cast alloy chassis HF PMC SEAS , 19mm twenty5i series, SONOMEX fabric soft dome, Ferrofluid cooled, with 34mm surround and dispersion grille Effective ATL Length: 2m (6.5ft) Frequency Response: 39Hz - 25kHz Impedance:8 Ohm Input Connectors: One pair 4mm