Bose New Sealed in Shrink Wrap Jewel Center (Horizontal) Channel. Uses AC-2 adapter which is included. The Bose Jewel Horizontal Center Channel Speaker in White is a high-fidelity, wired speaker designed for any audio setup. With a sleek double cube shape and 2-inch drivers, this single speaker is compatible with Bose systems and can support 5.1, 7.1, and 9.1 channel surround sound formats. Price and listing is for 1 (one) speaker. Multiple are available. Offering 400W RMS power and an impedance of 6-8 Ohms, this center channel speaker provides clear and powerful sound for your home audio experience. Speaker measures approximately 5.5" wide, 2.5” deep, and 2.25” tall