Inline Fuse

[DECIM8]

Hey guys,

I have a rather large sound system...

1500w Sub

1500w amp

and some 450w amp for my speakers.. Im blowing inline fuses at 60A, Im concidering going higher to stop this from blowing, is this advisable?

I cant find any info on what damage can be done if I do go higher. I assume amp fuses start blowing.

I know im blowing them because I pushing the sound to high.. Perhaps I need bigger wires? I get to about 30 with no distortion and then sub stops, fuse gone.

What can I do to push it higher?

Someone lend a hand, cheers

[infamous_t]

Just make sure the cable you've got is rated for the higher amperage, if all good change fuses... if not upgrade cable.

[mikel]

I agree with the above post - the fuses are there to protect the wiring, and also amps under short circuit conditions.

Provided you have no fault like a short circuit causing the fuse to blow (which is unlikely since your fuse blows when you wind the wick up), then check that the cabling can handle additional current and put bigger fuses in, or separate your power feeds and individually fuse them.

[Hotr34]

100amp circuit braker will do the trick.

[mark_sudakov]

http://www.bcae1.com/images/swfs/systemdesignassistant.swf

Make sure u enter wrms figures not max watts. Basically add all the fuses on your amps, thats the amperage you need for the inline fuse next to the battery.

Edited March 28, 2008 by mark_sudakov

[DECIM8]

Ive got the inline fuse, then ive got a split section where two single lines come off the main line, so each amp gets big power. This splitter has two 60A fuses and I blew one of them. I guess that the line to the amps is not big enough?

And Jaycar did not have a 70A fuse

Oh and also before that I actually melted the splitter and blew the fuses (but thats because the sub was hitting one and causing it to jump in and out)

Edited March 29, 2008 by DECIM8

[ecyrb]

What guage power cable do you have running from the Battery to the Distrobution Block. And from that, what guage power cable do you have going to each amp? From what i gather you have a distrobution block with 2 fuses in it yeah? but what fuse do you have between the distro block and the battery? And also as Mark said, use RMS, not Peak Power, because peak doesnt mean much these days, as alot of brands use it as a marketing tool.

[DECIM8]

Ive got 60a sitting from the battery and another two 60a between the amp distro..

I believe its the cabling going to the amps, and I also think ive blown the front splits as now sometimes i hear them clicking.. but not distorting from memory i think its called clipping?

Replace front speakers I think... Alpines too! Perhaps turn gain down.

The installers did it all this way.. I dont know wtf to do..

[mikel]

having fuses blow does not relate to the cables being too small, although the fuse size should relate to the cable gauge so that the fuse blows before you melt a cable (that's what fuses are for - it's very frustrating when expensive cable sacrifices itself to save a $1 fuse:( )

If the tweeters aren't distorting when listening normally, then they're not broken. If they're clicking when the music is loud then they or the amp may be clipping, and if they click for long they'll soon be dead. Tweeters tend to zot themselves quite quickly when mistreated.

If the amps are clipping then you'll be sending more power to the tweeters via compression than they'll be able to handle - turn the volume down.