Designed to power loudspeakers in other parts of your house - or to add extra home cinema channels for 7.1 surround, the PA 2000 delivers 4 x 45 watts or 2 x 100 watts. Special circuitry maintains signal integrity over long cabling distances, so you can enjoy high fidelity anywhere in your home. Fanless cooling for ultraquiet operation and automatic, music-sensing power on/off are featured, too.