Amp picking help

[EWoofer]

Hello i need help with picking the wattage for a amp, the subwoofer is a sundown e10v3 500w rms. Im new to this please help me. I also don't know how many cubic feet the box should be and if i should get the 4 ohm woofer or the 2 ohm. Please help me pick the amp as i know very little about this stuff and also what box i should get. THANKS AHEAD OF TIME:naughty:

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[EWoofer]

thank for all the help everyone, i really dont know what box size thats why i said what sub it was so one of yall with more experience would be able to help