2.5 way, 2 x 8" (203mm) Polycellulose Low-Freq Woofer; New High Definition Imaging (HDI) Waveguide; 1” (25mm) Aluminum Dome Tweeter; Rec Amp Power 20 – 225W; Frequency Response36Hz – 40kHz; Sensitivity91dB @ 1M, 2.83V; Nom Impedance 6 Ohms; Crossover Frequencies 1.4kHz, 2.0kHz; Dimensions (W x D x H)260 x 370 x 1070mm; Weight 22.56kg