specific wiring questions

[mossman8235 10+ year member]

heres my situation, some might be familiar with it. i am going to be running a ma audio hk4000d and hk398, and a fully loaded 15" Fi BTL. luckily, i will be able to modify my battery tray to be able to fit two yellowtops next to each other. im going to be doing the big 3 as well as upgrade my alternator and add a second yellowtop, all before powering everything up. i already have 1 run of 1/0 gauge going back that i planned on using for the hk4000d and was going to run some 4ga back for the hk398. im not planning on using the full 3700-4000 watts that the 4000d can put out, because the RMS on the STL is only 2000, and i dont want to risk frying it. so my question is, can i just use that run of 1/0 ga for the 4000d and a run of 4ga for the hk398? if so, i plan on fusing the 4000d with a 300A fuse and the 398 with a 125A fuse.

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[btlking 10+ year member]

so why dont you want to give the btl all the power? run 2 runs of 0 gauge to the 4000 if you can if not one is fine

 

[mossman8235 10+ year member]

because i dont want to chance blowing it with 1700-2000 more watts than it needs lol. well, i could run 2 runs of 1/0 back there, but i was hoping to avoid that by placing the second battery under the hood instead of in the back.

 

[spin dB 10+ year member]

YOu should have no problem running just 1 run of 1/0 for the HK4000d, I have a pair of these amps and I don't have a problem. if you daisy chain the batteries under the hood first then you don't need to worry.

As for the subs I am surprised that you are that worried. I am planning on giving my T3 audio TSS 10's over 3500 Wrms each continuously. I don't think that you have to worry about blowing that sub.