The new Steinway Lyngdorf P200 surround-sound processor serves a very specific and important role in a home theater. It receives the audio signal from the source and distributes it to the amplifiers driving the speakers. For those who prefer to use their sound system for a variety of functions, the P200 possesses a unique feature that allows it to serve multiple speaker sets—each configured for different listening applications. For instance, a user employing the P200 could set up a system with separate speaker…