Di-Polar In-Ceiling Speaker  A single in-ceiling speaker that has inputs for both left and right audio therefore offering both sound channels through a single speaker Frequency response lower limit:70Hz Frequency response upper limit:20kHz Length / Height external:83mm Width, external:230mm Colour:White Depth behind panel:83mm Diameter external:230mm Diameter panel cut-out:190mm Impedance:8R Material:ABS Power RMS:25W Power max:60W Sound level SPL:88dB  Approved
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