4 gauge is going to be plenty run bigger if you are going to run a second amp later "doubt it". 2 gauge will probably not fit directly without a adapter to drop 2 to 4 gauge or distribution block first.
I personally was running 4 gauge back than 4 gauge into a dis block and 4 gauge out to two amps, a 1000 watt amp and a 60 X 4 amp never had a problem.
Last edited by bigaudiofanat; 07-19-2010 at 09:35 PM.
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