The PM4400 amplifier owes its perfectly balanced stereo sound reproduction to symmetrical circuit architecture, that mirrors signal paths in the left and right channels. Superb sonic performance is delivered via two pairs of loudspeaker outputs, giving you a choice of drivingseparate speakers for multi-room systems, or minimizing crossover distortion by independently driving bass and tweeter units. The 2 x 30 watts amplifier (into 8 ohms) also features D.BUS to ensure that your Marantz devices can be controlled with a single system remote.