An in-ceiling speaker built around KEF's Uni-Q driver array with a very shallow mounting depth.Uni-Q single point sourceUltra-Thin Bezel and flat magnetic paintable grilleIP64 weather resistantKEF Ci130.2CR In-Ceiling SpeakerSKU: SP3938ASpecifications Frequency response (±6dB): 52Hz-20kHz Sensitivity: 87 dB Nominal impedance: 8 ohms Recommended amplifier power: 10-80 W Dimensions (H x W x D): 193.4 x 193.4 x 81 mm Cut-out: 158 x 158 mm Weight: 1.3 kg