i just had a RockfordFosgate 1000watt amp to two 10" alpine type R's 4 infinity kappas and an alpine MRP-F300 200w 4 channel amp for the speakers.
along with a 1 farad rockfordfosgate capacitor. of course its all too much for the battery to handle so my question is what kind of battery would be best for all of that?

Also a problem i'm having is entirely screwed up sound coming from the two front speakers. the back two are totally fine.
the audio in the front is just very muffled and sounds like the speakers are being over driven its just that they are very quiet.

Any help or opinion on any of this would be greatly appreciated.