Nerd some insight on which amp to buy to power (2) 13tw5.

I don't know much about sounds. I originally had one 13tw5, and I bought a jl 500/1 amp for it. I know the sub is 3 ohm and the amp runs at 500 watts from 1-4 ohm...nothing has been connected yet and I recently came up on another 13tw5. So my question is, which amp can run both of these subs with know problem? I get confused on the speakers being 3 ohm, if I have 2 of them wouldn't that be 6 ohm's, or does is not matter cause it can be bridged (most likely a dumb question). I was thinking of a jl 1000/1...