One of the core components that can be used to distribute your favorite music around your home is known as a controller. It’s a device that is part multi-channel amplifier, part advanced audio matrix, and part device control system. In other words, it’s the box that all of your favorite audio sources get connected to. It’s smart enough not only to handle playing your music around your home, but also to send the proper commands to turn them all on and off, to play or pause them, to skip forwards or backwards, or to change tracks, stations, etc. Russound offers three different controller types ranging from our advanced MCA-Series, to the intermediate level CAA-Series products down to our easy-to-use entry-level CA4 system.