Zapco Dc200.2 DC Series 200w RMS 2-Channel Amplifier w/ On-Board Digital Processing 4 ohms: 50 watts x 2 chan. 2 ohms: 100 watts x 2 chan. Bridged, 2 ohms: 200 watts x 1 chan. T.H.D. + Noise: &lt;0.01% @ 4 ohms.