hi,

I have 2 rockford P3SD412, anybody can help on amplifier or how much watts do I need.

I have a soundstream pca2.760, I was wondering if I can still use it and how do I wire them.

thanks.

if going ahead with that amp wire the subs them selves in series to get 8 ohm  put them in the enclosure now you should have 8 ohms at your enclosure terminals wire from your enclosure terminals in parallel to the amp this will give you 4 ohms @ 760. but this would be a little light load on the subs . if you are on a tight budget you can pick up a Hifonics brutus BRZ 1200.1D wire the subs them selfes parell to give you 2 ohms each put them in the enclosure this will give you 2 ohms at the enclosure terminal and the wire them to the amp in parallel this would give you a 1 ohm load and this amp can do 1 ohm all day with out getting hot. that would give you 1200 watts rms 600 rms per sub