Acoustic Audio PSS-52 Bookshelf Speakers 100 Watt 5.25" 2 Way Home Theater Audio Pair Acoustic Audio PSS-52 indoor black full range bookshelf speakers, recommended power is 15-100 watts for the pair, frequency response is 60Hz-20 kHz, efficiency is 89dB, 8ohm, 2-way passive design 5.25" polypropylene woofers, wide dispersion horns with 1" piezo tweeters, mounting hang tabs, quick release spring loaded terminals, video shielded, digitally tuned bass reflex cabinet enclosures Acoustically transparent grills, black ash wood grain veneer finish, each speaker size (H x W X D) is 11.57" x 7.63" x 4.29", 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 This listing and price is for 1 pair / 2 indoor speakers