If you dont kno wut his amp is its a 2channel amp running 300watts rms x 2 at 4ohms, 480watts rms x 2 @ 2ohms, or 870watts rms x 1 @ 1ohm stable. im not sure wut the mono watt rms is i think its 870 or 780 or 980 one of those but the amp is in good perfect workin order just has scratches on it due to normal wear because its hard to keep that chrome finish nice and clean and away from scratches. just give me a price you are willing to buy i dont ask much since its used. i upgraded to 2 alpine mrd-m500's so i wont be needing this