amp suggestions

[lethalcockgame]

i have some old shool rockford fosgate rfa-412 subs. i have 2 12in in a band pass box. i was wondering on how many watt amp sould i get to push the subs?

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[Foote 10+ year member]

take the RMS of one sub, multiply it by 1.33 to get x

2x = sub wattage

THats what Id do =\