How big an amp do I need?

If you have Rockfords 8" Punch Z  or HE then I would reccomend Rockford Fosgates Punch 301M amp and wire your two subs in parrallel to get 300 watts RMS at 2 ohms. http://www.crutchfield.com/cgi-bin/S-EL41FJeiRzg/ProdView.asp?s=0&c=3&g=130&I=575301M&o=m&a=0&cc=01&avf=N

If you have HE2's or HX2's then I would reccomend the Rockford Power 351S amp which would give you just a little bit more power for your subs at 4 ohms bridged (350 watts RMS).    http://www.crutchfield.com/cgi-bin/S-EL41FJeiRzg/ProdView.asp?s=0&c=3&g=110&I=575351S&o=m&a=0&cc=01&avf=N    I would wire them in Parrallel also :

customsuburb wrote: If you have Rockfords 8" Punch Z  or HE then I would reccomend Rockford Fosgates Punch 301M amp and wire your two subs in parrallel to get 300 watts RMS at 2 ohms. http://www.crutchfield.com/cgi-bin/S-EL41FJeiRzg/ProdView.asp?s=0&c=3&g=130&I=575301M&o=m&a=0&cc=01&avf=N If you have HE2's or HX2's then I would reccomend the Rockford Power 351S amp which would give you just a little bit more power for your subs at 4 ohms bridged (350 watts RMS).    http://www.crutchfield.com/cgi-bin/S-EL41FJeiRzg/ProdView.asp?s=0&c=3&g=110&I=575351S&o=m&a=0&cc=01&avf=N    I would wire them in Parrallel also :

Great info! I have the Punch Z subs.  That's all that will fit the enclosure.  What about the 351M?  That would give me the remote adjustment.  I can pick one up on the web for $135

OK Now I am worried.  I ordered a 351S because I wanted the remote volume switch and I wanted to be able to power the front speakers if I decide to.  Did I screw up?  Can I not use the 351S with RFZ3408 speakers?  The box says they are rated at 150/400 rms.  If I can use the amp,  How would I wire it to make sure I didn't feed to much power to the speakers?

Thanks for your help!