Ok you guys what I have got is 4 10's. All 4 are fosgate with 2 of them being 150 watts rms each and 2 of them being 200 watts rms each. And the way I have got my speakers wired I am carring a 4 ohm load per pair. So with the amps that I have (for right this second.they are just ones i had lying around) the 150's are getting 40 rms each and the 200's are getting 75 rms each. So my question is what kind of db's do you think i'm hitting and what will I have with say the 150's getting 150 true watts each and the 200's getting 200 true watts each?thanks for your imput.

 

Need a LOT more info than that to even give you an idea. First what subs are they? Second what type of enclose are they in and how are they wired? After that you can get a very very very rough estimate...

 

I don't know if you are aware of this but it's never a good idea to mix and match different subs together like this. Richard Clark did an article on this subject in CarSound several years ago saying that you shouldn't mix and match subs. He even showed how in some cases you can end up having cancellation.