Russound RSF-61 6.5" Acclaim Thin Bezel Speakers (Pair) -- NEW in BOX -- - Magnetic grills - Inceiling\Inwall 5-80W Loudspeakers Cutout Dimensions 8.375" diameter Frequency Response 50Hz - 20kHz Impedance 8 ohms Mounting Depth 3.49" Overall Dimensions 9.13" diameter Recommended Power 5-80 watts Sensitivity 88dB @ 1w/1m Tweeter .75" pivoting PEI Type Two-way in-ceiling/in-wall Woofer 6.5" polypropylene cone