Featured I need help deciding which fuse for dist block

[ekah]

Going to buy a amp kit from knuknkcept but they're asking which fuse do I want to use
Which are 150 200 250 300.
I'm not sure which fuse rating I'm suppose to use.
Would be in a 2003 4runner
Stock alternator
Skar 3500skv
Precision Power 900.4
With deaf bonce speakers and tweeters
2 psi platform 2
On a pioneer headunit 2550 dex

Thank you

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[Old_Slapper]

what's the RMS power of the amp?

 

[Blackout67]

That amp will probably pull well over 300 amps once you consider efficiency

 

[Old_Slapper]

That amp will probably pull well over 300 amps once you consider efficiency

At full power, you will be drawing about 450 amps. However, I doubt you will be pushing your system that hard. So, that being said, I would use at least a 400 amp fuse. Remember, the fuse is not to protect the amps, it's to protect the wire from burning up.

You will need an alternator upgrade, along with extra rear mounted batteries and supercapacitors (yes, that's a stupid name). You could get a lithium power bank, but those are ridiculously priced.