Size of fuse for 4ga wire


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I have a system that keeps having trouble with the fuse blowing. I just put in 4ga wire and the kit had a 100A fuse. While listening to it kinda of loud the thing blew. My amp is a 1200.1 jbl and i have a powerhx2 wired to it. I think the wiring is set to 1 Ohm and the amp has 1200 watts at 2 ohms. So if i have this much power going to the amp, What size fuse should i use in the wiring to make it not blow all the time?

Any help will be appreciated.

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 5161
Registered: Dec-03
120A fuse is what's needed if the JBL is the only amp on that 4ga line.
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