need fuse advice

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=97114
Printed Date: May 14, 2024 at 9:51 AM

Topic: need fuse advice

Posted By: mustang_pumpin
Subject: need fuse advice
Date Posted: September 13, 2007 at 3:14 PM

Ok currently installed in my car is.....

2 x 12" Cerwin Vega Stroker 2ohm DVC subwoofers with a 2000w RMS and 4000w peak power handling!!!

4 x Phoenix Gold Octane-R series R15.0:1 class D Monoblock amplifiers with 1500w output each!!!!

ok i originally had only 2 of the phoenix gold amps installed and never had any problems with fuses blowing or anything... but now that i have the 4 amps installed my fuse keeps blowing so i can safely and obviously assume that the 1 x 80amp AGU fuse i have installed is not anywhere near the properply needed fusing for this setup!!

i just upgraded alternators to a 240watt which i upgraded all the wiring for it to 0/1awg wiring!!

i would like some advice from anyone and the more the better, about what size fuses, and where they should be installed and how and well anything u can recommend for the setup i have installed!!!!

ANY HELP ASAP WOULD BE GREATLY APPRECIATED!!!!

Thanks in advance to all that reply 8D

Replies:

Posted By: dwarren
Date Posted: September 13, 2007 at 3:30 PM

Do you have 0/1 gauge power wire to the amps?

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Posted By: mustang_pumpin
Date Posted: September 13, 2007 at 3:40 PM

well right now i only have 4awg going from the battery to the amps but i have 20ft of 0/1 awg wire on its way to me so as soon as i get it i am going to have 0/1 awg going to the amps but only 4 awg right now

Posted By: dwarren
Date Posted: September 13, 2007 at 3:57 PM

4 amps of that magnitude on 4 gauge. Not such a hot idea.

https://www.the12volt.com/info/recwirsz.asp

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Posted By: xtremej
Date Posted: September 13, 2007 at 4:32 PM

2 of those hungry mustards on 4 gauge is not a good idea unless the run is 3 feet. I can't imagine a 240a alt is going to keep up with 4 of them either.

Posted By: mustang_pumpin
Date Posted: September 13, 2007 at 5:13 PM

yeah i kinda figured 4 awg wouldnt cut it thats why i am geting the 0/1 awg

any tips on fusing my setup at all??

Posted By: dwarren
Date Posted: September 13, 2007 at 5:15 PM

Were you unable to read the link I posted?

https://www.the12volt.com/info/recwirsz.asp

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Posted By: mustang_pumpin
Date Posted: September 13, 2007 at 10:56 PM

yes i was able to read the link u posted but how does that help me?? the displayed rms watts dont even go up to what my amps produce!!

Posted By: stevdart
Date Posted: September 13, 2007 at 11:21 PM

Look at the chart that reads "Power and Ground Cable Specs". The amperage values show you the maximum you can fuse the wire gauges with. That's how the link helps you.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Posted By: mustang_pumpin
Date Posted: September 13, 2007 at 11:32 PM

oh DUHH... i only looked at the top chart!! my bad

so let me make sure i got this right.... it is telling me that for 1/0 awg wire i need a fuse maximum of 350amps.... am i understanding that correctly???

Posted By: haemphyst
Date Posted: September 14, 2007 at 11:32 AM

Yes.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Posted By: mustang_pumpin
Date Posted: September 14, 2007 at 4:32 PM

well i think ive got it all figured out properly now!!

i went out and bought an ANL fuse holder and a 300A fuse and installed it.... now if my 0/1 awg power wire would hurry up and get here i can get rid of the lil 4 awg power wire and hopefully be all good to go!!!!

posted_image

Posted By: xtremej
Date Posted: September 14, 2007 at 4:41 PM

Please post that you didn't put a 300a anl fuse inline on 4 gauge............

Posted By: stevdart
Date Posted: September 14, 2007 at 5:30 PM

posted_image oops...another burning car on the side of the road...

My first thought, too, as soon as you said you didn't have the 0 gauge yet...just where in the heck did you put that 300 amp fuse?

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Posted By: mustang_pumpin
Date Posted: September 14, 2007 at 8:29 PM

xtremej wrote:

Please post that you didn't put a 300a anl fuse inline on 4 gauge............

posted_image HAHAHA... NO WAY would i put a 300a on a 4 awg what are you nuts?!?!!?!! I Bought a 150a fuse to use with the 4 awg for now until i get my 0/1 awg wire... THEN I WILL use the 300a!!!!!

Posted By: mustang_pumpin
Date Posted: September 14, 2007 at 8:32 PM

I guess i should have mentioned the 150a with that.... OOOPPSS my bad!! lol

posted_image

Posted By: mustang_pumpin
Date Posted: September 15, 2007 at 10:30 AM

mustang_pumpin wrote:

Ok currently installed in my car is.....
2 x 12" Cerwin Vega Stroker 2ohm DVC subwoofers with a 2000w RMS and 4000w peak power handling!!!
4 x Phoenix Gold Octane-R series R15.0:1 class D Monoblock amplifiers with 1500w output each!!!!
ok i originally had only 2 of the phoenix gold amps installed and never had any problems with fuses blowing or anything... but now that i have the 4 amps installed my fuse keeps blowing so i can safely and obviously assume that the 1 x 80amp AGU fuse i have installed is not anywhere near the properply needed fusing for this setup!!
i just upgraded alternators to a 240watt which i upgraded all the wiring for it to 0/1awg wiring!!
i would like some advice from anyone and the more the better, about what size fuses, and where they should be installed and how and well anything u can recommend for the setup i have installed!!!!
ANY HELP ASAP WOULD BE GREATLY APPRECIATED!!!!
Thanks in advance to all that reply

im pretty sure this is due to having the 4 awg wire installed when it should be the 0/1 awg but..... when my car is running and i turn my stereo up to only like volume 8 -10 or so, my lil battery indicator light on my dash cluster flashes as the bass hits deeper.... am i correct that is most likely just because the size wire currently installedddddd or could something else cause this???

Posted By: mustang_pumpin
Date Posted: September 18, 2007 at 10:27 PM

Has anyone ever ran a wire from the battery ground (or location battery is grounded to frame) back to the amplifiers?? Would doing so make the ground connection stronger?? Or would doing so be pointless?