Low profile design, 25W, 4" High efficiency polypropylene butyl rubber surround, 75 Hz to 18 kHz, front mounted tap selector switch (1, 2, 4, 8, 16W at 70.7V), Trap door input section allows for through conduit runs with rigid or flex conduit, 4 pole detachable Phoenix style connector, press fit grille, c-ring/ v-rail mounting system hardware included, 10.5" Bezel dia., 4.25: Overall height, 9" Cutout, white.