Saw the other post about popping fuses and I was wondering what size main fuse from the battery would be recommended for this amp http://www.rockfordfosgate.com/produ...s=discontinued
I'm thinking about using a circuit breaker typeon my 4AWG so I wont have to worry about buying fuses so let me know what size you think I should use and if anyone has had any luck with the breaker type fuses?I have 2 MTX DVC 5512 12" subs also that's been wired at 4 Ohms.

 

I'd go with a 100Amp Fuse minimum. I have a 150Amp. It was installed with an old JL Audio 500/1 I had put in approx. 1 year ago. You may choose to go higher, but I'd go no less than the 100Amp.

 

Thanks for the info,I was just trying to be sure I was'nt going too high and cause the wires to burn up or something.

 

What size wire are you using? I use the 150amp with 4Ga. wire

 

Just remember, your fuse is your weak link. That is your protection. A little lower is always better than higher. I run only a 60 amp fuse with my 3 amps and over 1400 watts and have not blown one. I would not go over 100 for sure and with only that amp, might even try a little lower first. If it blows, you can always go a bit higher but, if you start to high.....

 

I have a 100 amp on my set up... it has never blowed...

I would not recommend a 150 amp on 4 ga, thats more than the wire is rated for unless you have a very short run.....

 

Yea that did sound a little overboard,I don't want to over heatthe wires and cause some serious trouble down the line.I'm also using a 4GA wire.

 

Well, your amp should pull about 60A at full load, and you should size for 115% of that. That means you need a 70A fuse, or something in that area. 100A is too large.

 

60-80 amp...

 

Ok thanks everybody for the insight,I think I'll follow my first mind and go with a lower amped breaker...

 

Would 120A be good in 1/0 gauge?

 

You should size it for the amp, not for the gauge of wire... unless the wire you're using is too small for your amp. Basically size it for the weakest link.

 

Actually I am going above recommended(gauge). Just not sure if the fuse should be upgraded to bigger fuse(along with wire)??

 

What he said..

 

150 Amp x 12 Volts= 1800 watts

You could have atleast three 500 watts amps on that.

TxHustla I wouldn't put a bigger fuse in, if the system will work off the smaller fuse. It's more of a risk to run a bigger fuse. The only way I'd put a bigger fuse in is if your amps are blowing the fuse from to much current draw. I don't see that happening to often.