the power cable was the best out as far as the guage....not sure what you mean as for svc or dvc???

the speaker wire was not get'ng hot just the ground i did use a bogus wire which mght have been the reason but now i am thnk'n it blew out my sub....im gett'n no output.....

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i have a tantrum 300.2 and a tantrum 600.4.....using the 300 to push a 10" ryval having major problems w/ the ground getting extremeley hot as well as the sub smoking?????not sure what went wrong the sub lasted less than an hour out the box...???any help please??/