Incorporating an 8-inch MMP II bass driver with Monitor Audio’s signature C-CAM Gold Dome tweeter to provide high performance sound, ease-of-drive, and wide frequency response and dispersion. Optimum imaging and set-up are established via a pivoting tweeter and high-frequency (+3 dB / 0 dB /-3 dB) level adjustment. Specifications Category Details Frequency Response 50 Hz – 25 kHz Nominal Impedance 6 ohms Sensitivity (1W@1M) 90 dB Maximum SPL 111.6 dBA Power Handling (RMS) 120 W Recommended Amplifier Requirements 30 – 120 W Drive Unit Complement 8" MMP II cone bass driver1" C-CAM Gold Dome tweeter Adjustment Controls HF Level Switch (+3 dB / 0 dB / -3 dB) Overall Diameter (Including Grille) 441 x 288 mm (173/8 x 115/16") Overall Depth (Including Grille) 104 mm (41/8") Mounting Depth 100 mm (315/16") Cut-Out Hole Diameter 387 x 234 mm (151/4" x 93/16") Fixing Type 6 position Tri-Grip dog fixings Construction Material Mineral filled ABS, RoHS compliant Weight 3.08 kg (6 lb 12 oz) Pre-Construction Bracket WB8 Pre-Construction Bracket (Green) Back Box WCBOX-L Sold As Single Unit Warranty Lifetime