Connects Up To 6 Pairs Of 8 Ohm Speakers;Each zone has a volume control for full zone control, one to all zones can be engaged at the same time;Can input two amplifier/receiver units. Handles up to 300 Watts RMS per channel;Accommodates 14 to 22 gauge speaker wire into screw bolt wire connectors;Steel housing, rubber feet, passive design, no power required. Pre-printed zone labels for easy speaker connection and identification, full instruction manual included