If it is power you need in a sleek, stylish, and compact package, the Bowers and Wilkins CDA-4D Amplifier is the right choice for you. Its Digital Signal Processor (DSP) makes it optimal for pairing it with a vast selection of products and offers dynamic EQ for Bowers and Wilkins subwoofers. This amp can deliver 125W of Class D amplification into 4 channels and can be run in 2 channel (2 x 250W) or 2.1 (2 x 125W, 1 x 250W) configurations. Only taking up a 1U rack slots, you can configure your entertainment system your way. It features dual zone audio and is compatible with both older and newer versions of Bowers and Wilkins products. It features a wide variety of connectivity options such as analog and digital inputs, (4) RCA phono sockets, ethernet, and more. This is the right upgrade for your expanding home entertainment system, as well as the perfect starting point for your new one.