Acoustic Audio HD-5c in Wall Speaker Center Channel Speaker Home Theater Surround Sound Acoustic Audio HD-5c High Definition in wall speaker, recommended power is 20-250 watts, frequency response is 38Hz-20 kHz, efficiency is 95dB, crossover frequency is 2200Hz, 8ohm 3-way design and functionality, two 5.25" woofers, woven fiber bulletproof cone with butyl rubber surround, pivoting PEI dome tweeter, spring loaded speaker wire terminals All weather design for indoor and outdoor use, paintable frame and grill, low profile housing, integrated wall-lock mounting system, cut-out template included for easy installation Cut out size is 13.25" x 6", overall size is 14.75" x 7.375", mounting depth is 3.25", designed and engineered in the USA, full instructions included Use for in wall or in ceiling home entertainment, center channel, surround sound, home theater systems, outdoor entertainment areas, decks, patios, pools, this listing and price is for 1 in wall center speaker