Fuse help? on car audio?

Question

i have a 0 guage wire from battery with a 150a fuse(came with the wire) the 0 guage goes to my trunk to a distributer block which is going to power a kenwood amp 900 rms and a smaller amp for inner speakers... the kenwood has (2) 30a fuses and the small amp has (1) 30 a fuse. ok so the distribution block needs (2) mini anl fuses and (2) regular size fuses... what size fuses should i use for the block? i was thinking (2) 15 a mini anl and (2) 40 a regular size anl fuses for the block . will that be ok ? or what fuses should i use,

Answer 1

Umm why do you have 0 gauge for 900rms I have 2000rms and have 1 gauge,Do u have fuse up at the battery if not get 1 there,get a 150amp fuse up there,so if that blows its stops all the others blowing,most people just get that one fuse done.

Answer 2

First thing first when dealing with fuses the MAX wattage is more important than RMS because u need to know the MAXIMUM that your gonna pull through that 0 gauge wire. .... volts x amps = watts. so if u have a 1200 watt MAX amp, on a 12 volt system (cars are 12.6v-14.4v) you can expect a maximum of 100 amps to be drawn. Most of the time you wont be maxing out ur amp though. Personally i go with a fuse thats rated about 80% of the maximum draw expected so as not to overheat the amplifier (i'd rather blow a fuse than an amp that's the point i think xD)

Answer 3

I think that those will be sufficient fuses. For the most part if your amps are fused right then those should not even be necessary. Especially with that 0 gauge wire, its pretty much overkill. However if you are planning to upgrade in the future it is a great choice.

Those fuses sound like they should do the job.