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I am wanting to get 2 12" alpine type x subs to put in my bandpass box and was wondering what amp/amps should i get or would be best recommended and what should i set the amps to?

Don't know if you're talking the older Type X subs or the newer 2nd generation Type X's, but neither are well suited to ported applications, much less bandpass applications.

The second thing is that you should NEVER choose a sub for a bandpass box, you should always design a box to the specific requirements of the subwoofer at hand, especially considering the complexity of a bandpass box and the precision it requires to get good results. Putting a sub in a premade bandpass box will end up with lackluster results.

My suggestion is that if you don't know how to design a bandpass box or build/buy one designed by a credible installer, you're best sticking to more conventional designs such as sealed or ported. And in this case you'd also need to pick subwoofers that are better suited for the job.

^ Agreed... Never buy a sub to drop into a box... always the other way around.