NIX-4000IB Professional Dual Channel 2x1040W 4-OHM 4000W Peak Output Power Amp Condition is Used. This Soundtown amp is in used condition there are some minor scratches on the unit and it powers up fine. Please see pictures for reference. XLR and 1/4 TRS input connectors provide great compatibility. Independent DC and thermal overload protection on each channel automatically protects the amplifier and speakers. Efficient dual DC fans prevent excessive thermal buildup. The rugged, heavy duty metal 2U rack mount chassis holds up to touring applications. Located in Waynesboro, PA. Orders paid on weekends (Sat-Sun) will not be processed until Monday.