my friend is interested in alpine cda-9830 1- jl 1000/1 mono amp 1.5-4 ohms 1- jl 300/4 amp 1.5-4 ohms 2- jl 10w7s 500w rms 3 ohms 2- infinity 5002i 5.25inch 2w-45w rms 2- infinity 105t 3/4inch dome 2w-50w rms 2- infinity 9603 6x9inch 2w-100w rms 1- alpine pxa-h700 11 band eq 1- alpine pre-h090 2 channel crossover his question is is this all compatable? is some of this over kill? will this have good sq and spl? will he need a larger alternator for the amps that he wants to run? should he go with a sealed or ported or bandpsass box? any advice?