Bose Acoustimass 15 Home theater speaker system

From the roar of a runaway train to the sweet song of a cello, Acoustimass 15 speakers use a powered Acoustimass module to give you the right amount of bass - for movies or music. Using patented Acoustimass Speaker Technology, the Acoustimass module delivers deep bass without audible distortion, and can be hidden out of sight. All you see are the next-generation Acoustimass Direct/Reflecting cube speaker arrays. Along with dedicated amplification, the Acoustimass 15 speaker system uses proprietary Bose integrated signal processing to automatically adjust the sound balance for lifelike sound at any volume. And multi-channel bass extraction and summation reproduces low-frequency energy from a single source - regardless of receiver setup. The advanced technology inside these speakers automatically adapts to all surround sound receivers. The wires are marked to make connection simple. And everything arrives in one box with a quick setup guide.