Acoustic Audio AA32CB Mountable Indoor Center Speaker 300 Watts Black Bookshelf Acoustic Audio AA32CB indoor mountable black full range speaker, recommended power is 20-300 watts, frequency response is 90Hz-20 kHz, efficiency is 90dB, 8ohm Two 2.5" polypropylene full range woofers, mounting brackets and hardware included, quick release spring loaded wire terminals Heavy duty ABS construction sealed cabinet, speaker size (H x W x D) is 3.625" x 8" x 4.25", designed and engineered in the USA, full instructions included Use for surround sound, home theater, multiple room systems, center channel speaker, industrial sound systems, bookshelf, bathrooms, kitchens, car audio This listing and price is for 1 indoor speaker