I have a Rockford Fosgate R400-D running a pair of Polk db6501 in the front and Alpine SPS-600 in the back. The amp pushes out 75W x 4 RMS (actually 105W according to the birth sheet) The Polks take 100W RMS x 4 and the Alpines take 80W RMS x 4
The HU is a Pioneer DEH-P7200HD with 4V Preamp...