Marts Digital MXS 1200WX4 2-OHM 4-Channel 1200W Full Range Class-D Car AmplifierBRAND NEW MARTS DIGITAL MXS 1200WX4 2OHM 4 Channel 1200 Watts Full Range Class D Car Audio Amplifier Key Features: Class D RMS Power at 2 Ohm 12. 6v: 290W x 4 RMS RMS Power at 4 Ohm 12. 6v: 275W x 4 RMS BTL RMS Power at 4 Ohm 12. 6v: 487W x 2 RMS RMS Power at 2 Ohm 14. 4v: 280W x 4 RMS RMS Power at 4 Ohm 14. 4v: 280W x 4 RMS BTL RMS Power at 4 Ohm 14. 4v: 505W x 2 RMS Supply voltage: 9. 5 16 Volts Frequency Response: 10Hz 20KHz LP Pass Crossover: 50Hz