Rockford Fosgate P400X4

Punch Series 400W Class-AB 4-Channel Amplifier Power Rating: 4 Ohm: 50 watts x 4 ch. 2 Ohm: 100 watts x 4 ch. 4 Ohm Bridged: 200 watts x 2 ch. Frequency Response: 20Hz - 20,000Hz Front & Rear High-Pass / Low-Pass Filter (12dB/Octave): 50Hz - 250Hz Punch EQ (45Hz): +18dB Boost C.L.E.A.N. Set-up Cast Aluminum Heatsink Balanced Differential Inputs High Level Input Capable with Auto Turn-on RCA Pass-thru Outputs Dynamic Thermal Management Short Circuit Protection Over Current Protection Dimensions: 2.38" (60.5mm) H x 7.76" (197.1mm) W x 11.03" (280.2mm) D 1-Year Dynamic Autosound Warranty