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EternalOne · 05-16-2008, 05:05 PM

No, fuse size doesn't matter there. The only thing the fuse does is protect what's behind it. Ie, if a spike (from a ground-out or something else) tries to draw 500amps thru the wire, the 300amp fuse will pop. It's just a safety measure and unless its UNDERsized it won't cause an issue. Although it should be more closely mated to the amps to protect them. In my new setup we ran 2 4guage wires from the batteries back to the amps, each power wire is fused with 100amp ANL at 6" from the battery...

Also, as a side note, a 3500w amp that pulls under 100amps is not putting out 3500w. 50amps per 1000w is the avg, but with most of the "cheaper" amps being a lot less efficient you normally see them waste a lot of juice.

E1

05-16-2008, 05:05 PM	#23 (permalink)
EternalOne Rolling Chassis Join Date: Nov 2002 Location: Redford, MI Posts: 4,439	Re: The race to Fest! No, fuse size doesn't matter there. The only thing the fuse does is protect what's behind it. Ie, if a spike (from a ground-out or something else) tries to draw 500amps thru the wire, the 300amp fuse will pop. It's just a safety measure and unless its UNDERsized it won't cause an issue. Although it should be more closely mated to the amps to protect them. In my new setup we ran 2 4guage wires from the batteries back to the amps, each power wire is fused with 100amp ANL at 6" from the battery... Also, as a side note, a 3500w amp that pulls under 100amps is not putting out 3500w. 50amps per 1000w is the avg, but with most of the "cheaper" amps being a lot less efficient you normally see them waste a lot of juice. E1 __________________ 1999 Widebody Cougar Supercharged 3L - 08 Final Assembly In Progress 1992 Eagle Talon TSi AWD Turbo - 350hp Sleeper 1992 Mitsubishi Eclipse GSX AWD Turbo - Drag Car 1999 GMC Yukon - Orion HCCA Competition Truck The perfect site for all the elbow-biters and waterheads on the Interwebs...