Enjoy stereo sound with your amplifier and this pair of black?Bose 161 Full-Range Bookshelf Speakers. They each sport two 2.5" Twiddler drivers mounted in an Articulated Array design to broaden the soundstage, thereby expanding the sweet spot. The speakers can each accept 10 to 100W of power from your amplifier, making them suitable for most home theater installations. Wall mounting brackets are included to provide additional placement options.