Answers: the subs are 380 watts rms so a total of 760 watts rms @ 2 ohms is what you need.and wired close to so
http://www.crutchfield.com/learningcente...
xm-1s is 500 watts rms@2ohms
xm-d9001gtr is 900 watts rms@2ohms
so out of the 2 only the xm-1s is going to work grounds the other amp will be to much power.
my suggestion is
http://www.onlinecarstereo.com/CarAudio/...
$169 with free shipping 750 watts rms@2ohms and if you ever upgrade the subs to superior powered and dvc then u can still hang on to this amp.it is made by maxxsonics the same company that make autotek,hifonics,&m b quart so it it a good feature amp.
and yes,the cd deck can make a hugh difference surrounded by bass quality.some deck have an adjustible sub pre-out,built surrounded by sub crossover,higher voltage pre-outs and so on so yes the deck can definately formulate a difference.
pioneer is a better amp then sony explod amps. check this store out www.cardiscountsounds.com
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