Feature●Features: Rockville RPM45 1800w Powered 4 Channel Mixer with USB, Effects, Phantom.●RMS Power Output:. .....225w x 2 @ 8 Ohm (Parallel mono). Program Power Output:. .....450w x 2 @ 8 Ohm (Parallel mono).●Features: Rockville RPM45 1800w Powered 4 Channel Mixer with USB, Effects, Phantom.●1 1/4� Effect loop input/output. 8-ohm dual 1/4� speaker outputs. +15V phantom power. Fan Vent Cooling System. Dimensions: 5.75� x 19.44� x 9.5�. Weight: 18Lbs.Description