Stereo powered source switcher/power amplifier 2 x 50 watt rms into 8-ohm impedance 2 x 60 watts (4 ohms) 100 watts bridged mono Auto-on signal sensing Dual line-level inputs with priority override switching - perfect for custom home audio distribution A/B switchable speaker outputs Independent front panel volume and balance controls 13 1/2 W x 2 3/4 H x 8 D AMP-200: 16 1/2 W x 3 1/2 H x 14 D AMP-300: 16 1/2 W x 5 1/4 H x 14 D