100W max, 50W nominal; 8, 2-way, round in-ceiling/wall loudspeaker; Poly woofer with butyl surround; .75 pivoting dome tweeter; Imp: 8ohm ; Freq resp: 35Hz-20kHz; Sensitivity: 91dB @ 1W/1m; Perforated metal, frameless grille may be painted to match mounting surface; Cutout dim: 8.63 dia x 3.88D; Overall dim: 9.88 dia; Pair;