Key Features: Clear, High-Fidelity Performance 6W Transformer for use on 70V / 100V Distributed Lines Dog-Ears for Easy Blind Mount Installations High Sensitivity for Maximum Power Efficiency Open-back design for applications not requiring an in-ceiling backcan. Specifications (8128): Component: 200 mm (8 in) Full-Range Frequency Range (-10 dB): 50 Hz – 16 kHz Coverage: 90° conical Sensitivity (2.83V@ 1m): 97 dB (1 kHz - 8 kHz) Termination: Bare Wire Nominal Driver Impedance: 8 ohms Driver Power Capacity: 25 W 70V/100V Transformer Taps: 6 W, 3 W, 1.5 W, (0.75 W at 70 V only) Dimensions (Diameter x Depth): 287 mm (11.3 in) diameter round baffle x 104 mm (4.1 in) depth from back of baffle Cutout Dimension: 260 mm diameter (10.1 in) Net Weight: 1.4 kg (3.0 lb) Included Accessories: Sculpted Grille Optional Accessories: MTC-8128C C-ring MTC-RAIL tile rails