I have heard 2 rockford 10 in one box with a rockford 150 amp and it hit very hard.we even used 1 4 ohm and 1 8 ohm but that thing rocked I would recomend a little bigger amp but I think if it is anything like this one it was a good idea!!//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif