Tecnical informationLoudspeaker Specifications:Transducer2.5" full-range driverFrequency Range80Hz – 16kHz (±3dB)Beamwidth (average over 1 – 4kHz)Flush-mount loudspeaker: 150° @ -6dBSurface-mount loudspeaker: 150° @ -6dBRegulatory ComplianceComplies with UL-813, CSA-C22.2,IEC 65, DentoriDimensions:Flush-mount Loudspeakers:Flange Diameter: 6.25" (15.9 cm)Hole Diameter: 5.75" (14.6 cm)Depth: 6.5" (16.5 cm)Weight: 2.1 lb (.97 kg) loudspeaker only,4.2 lb (1.9 kg) including mounting hardwareSurface-mount Loudspeakers:3.3" (H) x 7.6" (W) x 6.4" (D)(8.3 cm (H) x 19.3 cm (W) x 16.33 cm (D))Weight:2.5 lb (1.2 kg) including mouting hardware