Frequency Response +/- 3dB: 42Hz - 30kHz Sensitivity (1W@1m): 90 dB Nominal Impedance: 8 ohms Power Handling (RMS): 100 W Recommended Amplifier Requirements (RMS): 30 - 100 W Cabinet Design: Front ported bass reflex. HiVe®II port technology Crossover Frequency: 3.2kHz Drive Unit Complement: 1 x 165mm (6 1/2") C-CAM® bass mid-range driver 1 x 25mm (1") gold dome C-CAM® tweeter External Dimensions: (H x W x D) 350 x 185 x 255 mm 13 3/4 x 7 5/6 x 10 1/16 inches Weight (Individual): 5.84 Kg (12.8 lb)