Onboard mixer with two combo XLR,and stereo inputs, (three audio input sources); two direct channel outputs and single summed balanced output.Extensive enhances system performance (Directivity Matched Transition) provides for matched LF and HF coverage across the entire listening area, eliminating unnatural "dead" or "hot" frequency zones. DEEP and excursion limiting allow for extended low-frequency response by actively managing low-frequency transients without degradation of the underlying signal or adjacent frequencies. protects both the amplifier module and your performance from unnatural and destructive clipping. Model: K12A power module Power Output: 1000 W continuous Class D (500 W LF, 500 W HF) 2000 W : 10 k Controls:Power, Gain A, Gain B, Mic/Line, LF Mode, HF Mode (Flat/Vocal Boost), Front LED (On/Off/Limit) Amplifier Protection: Thermal limiting, output overcurrent, overtemperature muting, GuardRail Transducer Protection: Thermal limiting, excursion limiting AC Power Input: Universal power supply 100-240 VAC, 50 to 60 Hz AC Power Consumption:(1/8 of full power) 100 VAC, 2.3 A 120 VAC, 2.01 A 230 VAC, 1.13 A Output Circuitry: Class D Colour:Black Material:plastic Package Contents: 1 x Loudspeker Amplifier Broad 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.