When the ADM-2.1 is used in a secondary zone, users can play music from their primary setup. When used as an add-on, each additional channel will receive 105 watts of power. Built-in WRAT circuitry provides more bandwidth; therefore audio reproduction will be improved at high resolutions. Those with custom installations will likely appreciate the 12-volt turn-on trigger for automation purposes and phantom power support. The Integra ADM-2.1’s enclosure is built out of aluminum with a black brush metal finish.