The MC303 is McIntosh's first-ever multi-channel amplifier with Autoformer coupled output stage technology. The MC303 is a 300-watt, three-channel power amplifier and Autoformer allows each channel to deliver maximum power into 2-, 4- or 8-ohm loads. Also onboard is Power Guard to deliver high fidelity at high power levels, and Sentry Monitor to provide short-circuit protection.