i was thinkin A 4Channel for the speakers would help? yes? or new head unit

__________________
2000 XLT 4x4- Performance- custom CAI, 31" terrra Trac... Audio- front and rear JL TR's, Custom sub enclosure, JBL 1O" sub Driven by 1200pw JBL, Kenwood head unit.... Exterior-Custom painted Ford Ranger 16"s