I wanna buy 2 12" boss speaker both with a 1200watt rms how many rms should my amp have

[Saraholivo]

looking to put a sound System in my car need help with subwoofers watt and amp matching found boss one with a 1200 rms each and I wanna put 2 of them but not sure what my amp should be

 

[kanewolf]

It can be any amount. The 1200W that the speaker has is the MAXIMUM that it will survive. You need to verify the impedance (4 ohms I think) of the speaker. Then decide how you are going to wire them (probably in parallel). You need an amp that can drive a 2 ohm load. Since you want two 12 inch woofers, you want LOUD. I would guess you want 400+W for your amp. Something with that much draw requires special 12V wiring.