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<blockquote data-quote="knukonceptz" data-source="post: 1384395" data-attributes="member: 548221">Well the D1200 seems to be over rated it has two 30A fuses (14.4V x 60A = 864W @ 100% eff) So each model CAN pull 60A total. Thats 120A for the subs and the 200.4 is 25A. 4 Gauge is probably too small - your basically at the max limit of it and 2 gauge would be advised (or bigger) You can run your whole system off one 2 or 1/0 gauge wire with dist blocks in the rear to split power three ways.I would remove the breaker and replace with 150 or 200A Fuse. I say fuse because breakers are not reliable - anything larger will not make a difference since the max you can draw is 145A.Upgrade your Big 3 and make sure all connections are tight. If you have access to a battery charger - charge the battery while doing the other work. Retest after work is complete, I think the grounds will make a difference. After completion upgrade if required. 136A factory unit is pretty good in size, I am sure it can be made stronger if you do need it though</blockquote>

[QUOTE="knukonceptz, post: 1384395, member: 548221"] Well the D1200 seems to be over rated it has two 30A fuses (14.4V x 60A = 864W @ 100% eff) So each model CAN pull 60A total. Thats 120A for the subs and the 200.4 is 25A. 4 Gauge is probably too small - your basically at the max limit of it and 2 gauge would be advised (or bigger) You can run your whole system off one 2 or 1/0 gauge wire with dist blocks in the rear to split power three ways. I would remove the breaker and replace with 150 or 200A Fuse. I say fuse because breakers are not reliable - anything larger will not make a difference since the max you can draw is 145A. Upgrade your Big 3 and make sure all connections are tight. If you have access to a battery charger - charge the battery while doing the other work. Retest after work is complete, I think the grounds will make a difference. After completion upgrade if required. 136A factory unit is pretty good in size, I am sure it can be made stronger if you do need it though [/QUOTE]

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