CMS601 DC SYSTEM Frequency Response (-3dB) (1) BM Back can 75Hz - 30kHz Frequency Range (-10dB) (1) BM Back can 50Hz - 30kHz Frequency Range (-10dB) (1) PI Back can 46Hz - 30kHz System Sensitivity (1W @1m) (2) 91dB (1W = 2.83V for 8 Ohms) Nominal Coverage Angle 90 degrees conical Coverage Angle (1kHz to 6kHz) 111 degrees Directivity Factor (Q) 4.7 averaged 1kHz to 6kHz Directivity Index (DI) 6.5 averaged 1kHz to 6kHz Rated Maximum SPL Average: 110dB Peak: 116dB Power Handling (3) Average: 80W Programme: 160W Peak: 320W Recommended Amplifier Power 160W @ 8 Ohms Nominal Impedance 8 Ohms Transformer Taps (via front rotary switch) 70V: 60W / 30W / 15W / 7.5W / OFF & low impedance operation 100V: 60W / 30W / 15W / OFF & low impedance operation Crossover 2kHz - 2nd order LF, 3rd order HF (with dynamic HF protection) TRANSDUCERS Low Frequency 1 x 165mm (6.50") Dual Concentric™ constant directivity driver with multi fibre paper pulp cone High Frequency 1 x 25mm (1.00") titanium dome with neodymium magnet system PHYSICAL Enclosure Back Can: Zinc plated steel Baffle: Reflex loaded UL 94V-0 rated ABS Grille: Steel, with weather resistant coating Safety Features Safety ring located at rear of enclosure for load bearing safety bond Clamping Design Min / Max Clamping Range: 8.0mm (0.32") / 29.0mm (1.14") Recommended Clamp Torque: 1.5Nm Back Can Options Blind Mount (BM): Complete with fixed back can Pre Install (PI): Separate back can for pre installation Cable Entry Options Cable clamp & squeeze connector for conduit up to 22mm Conduit Knockouts 3 Sets of horizontal positions: 19 / 22 / 28mm (0.75” / 0.87” / 1.10”) Connectors Removable locking connector with screw terminals with "loop through" facility Safety Agency Ratings (pending) UL-1480, UL-2043, CE BM Hole Cutout Diameter 253mm (10.00") PI Hole Cutout Diameter 253mm (10.00") Dimensions Bezel diameter: 280mm (11.30") BM model: Front of ceiling to rear of back can 258mm (10.20") BM model: Front of ceiling to top of safety loop 275.50mm (10.90") PI model: Front of ceiling surface to rear of speaker unit 99.40mm (3.91") PI model: Front of accessory back can bezel to top of safety loop 168.50mm (6.60") Net Weight (ea) CMS501 BM: 7.45kg (16.42lbs) CMS501 PI: 4.09kg (9.02lbs) PI back can: 3.685kg (8.12lbs) Included Accessories C Ring, tile bridge, paint mask, cutout template, grille Optional Accessories Plaster (mud) ring