Rated Power3 W, 1 WRated Impedance3.3 kΩ (3 W), 10 kΩ (1 W)Sound Pressure Level88 dB (1 W, 1 m)Frequency Response180 Hz - 20 kHzAmbient Temperature-10 ℃ to +50 ℃Dust/Water ProtectionIP64FinishFrame and case: ABS resin, off-whitePunching net: stainless steelDimensionsφ180 × 120 (D) mmWeight700 gDimension for Fixing Holesφ150 mm (The speaker can be mounted to the ceiling panel withthickness of up to 50 mm)