Bose Acoustimass 6 Home Entertainment Speaker System (Black) Five magnetically-shielded cube speakers, each with a 2.5 directional high-performance, full-range driver, to cover all 5 surround channels. Hideaway Acoustimass module with two 5.25 Woofer bass drivers for adding rich levels of dimension for realistic theatrical sound Compatible with all surround sound receivers (including Dolby Digital and dts formats) or separate power amplifiers rated from 10 to 100 watts per channel (4 or 8 Ohms rated impedance) Includes a full set of color-coded pull-apart bundled cables and mistake-proof connectors for simple and convenient installation Each of the five Cube speakers is 3 1/8 High x 3 Wide x 4 3/4 Deep and can be mounted anywhere including walls (with optional wall-mount kits) Five magnetically-shielded cube speakers, each with a 2.5-inch high-performance full-range driver, cover all 5 surround channels Hideaway Acoustimass module with two 5.25-inch woofer bass drivers for adding rich levels of dimension for realistic theatrical sound Compatible with all surround sound receivers (including Dolby Digital and dts formats) or separate power amplifiers rated from 10 to 100 watts per channel (4 or 8 ohms rated impedance) Includes a full set of color-coded pull-apart bundled cables and mistake-proof connectors for simple and convenient installation Each of the five Cube speakers is 3 1/8 High x 3 Wide x 4 3/4 Deep and can be mounted anywhere including walls (with optional wall-mount kits)