imported_~ILLEST CIV~

Hey guys...today i blew my Amplifers 15 amp fuse....and i was wondering that'z such a low fuse....and i was wondering if i replace it with a 30amp fuse......will it be okay?.....cause doesn't the fuse protect the amp from getting fried?

scarlemthug

replace it with the same size fuse, if you blew the fuse you most likely need to turn the gain down or you shorted out the power or ground.

imported_~ILLEST CIV~

scarlemthug I'm really new at this audio amplifer stuff cause i got it installed during the week of xmas break.....so how would i know if i shorted out the power or ground?.....does it just happen?......or when i replace the fuse...will it work again and that means i haven't shorted out the power or ground?

also

i take it the gain power is the lil turn dial on the side of the amp?(if all amps have a universal like dial) mine i think says 0.3 0.5 then there are some -0.'z blah blah blah....lol yah amatuer i know....just enjoy it....that'z why i'm on this board to get the knowledge u guys have....lol

scarlemthug

A short would be if your power wire touched the metal chassis of the car, your power wire could have a slice in it etc.

I am guessing the gains are just set improperly but without seeing it im not much help. Set the gain to the minimum which would be the highest V rating. Pretty much what the gain does is it allows you to tell the amp the power of the rca's your running to the amp. So if your deck has 2V pre-outs you would try and set the gain to 2V. This tells the amp its receiving a 2V signal from the deck and therefore it knows how much it needs to amplify it to achieve the power.

lordm

also if you put a higher watt fuse in you could cause a minor electrical fire. the amp fuse is that rating for a reason. do not change and check all your conections and look at the ground going into your amp a small starnd of wire could be touching the trigger or postive terminals.

imported_loudsubz

replace it with the correct size, end of story

imported_~ILLEST CIV~

Thanks guys for the help......first thing tommorow when i get up, i'll check my wires and i'll get the same fuse.........

i just wasn't sure on some things and thanks for explaining

imported_loudsubz

just to clarify, did you blow the fuse on your amplifier, or the fuse by the battery to protect the power wire TO the amp?

because if its your amp fuse its totally different situationsd than if you blew the fuse under the hood

lordm

Matt its his amp fuse as stated at the beging of his thread

imported_loudsubz

I noticed matt just making sure because some of the points being made seem more related to faulty wiring rather than an actual short on the circuit board inside the amp

lordm

very true
usally the most comon problem is bad wireing job

imported_~ILLEST CIV~

hmmm.......well for sure first thing like i said.....i'll check out all the wiring.....make sure nothing touching anything it shouldn't be touching....get the same fuse....and power it back up again......lol let'z hope it comes to life........lol

imported_loudsubz

if the inline power fuse under the hood is fine its def somewhere from the amp out..

check for grounded speaker lead, or rca lead, or piece of the metal casing touching the chasis

Soundscare

if its your power line fuse just put in a bigger one, its really ok. I dont run anyfuses myself there at all. u only cause fire if u are an idiot.

if its the fuse on your amp thats blowing, replace it with the same one and i bet your ground is the problem, its either loose or in a bad place.

Cynikal.Mindset

that has to be the most moronic thing I have ever read!...well lets hope that u never get into an accident and you system shorts and causes a fire cuz you dont have any fuses or any other kind of situation that would cause an accidental grounding/short

PULOVR

Yep, it's not a pretty site when you short out a 4g power cable from the battery under the hood, to the amp at the back, and you don't have an inline fuse to protect it.


Kinda looks like this if the fire department doesn't reach your car in time.



That's also why the power cable is usually the first thing they cut when a car has been in an accident.......it's to keep the power wire from melting and catching fire due to a short somewhere. Even audio compititions specify that an inline power fuse has to so many "X" amount of inches from the battery. I wonder why they made that rule? Uh, maybe because it's a SAFETY issue?


:note to self......don't even refer anyone to Soundscare for an audio install:



BTW, there's alot more that could be wrong other than a loose ground, or a ground in a bad location, but I sure you already know that.

bbarbulo

iTrader: (2)

I fuse ALL connections that I make to any power source, even my gauges are individually fused - reason being even if you are already running on fused power, say the fuse is 15A and you are making a connection with a device that draws 2A. Odds are the wire will catch fire before the 15A fuse blows. So, off the 15A fuse I draw a line with a 2A inline fuse and continue to each gauge.

Soundscare

cmon guys lets refrain from comments like that, there is no need to call my statements moronic.
second of all they dont make a fuse big enough for me. biggest car audio ANL fuse u can get is 300amp and i draw more than that. kinda sucks when u take your car to a show and try to 'burp' your system and your fuses pop right away... huh?

third of all, to cause a short accidently u would have to be an idiot just like i stated before, if u gonna short something then maybe u should let some else do it no?

fouth of all, it's really ok if i get into an accidnet, there wont be any fire. my stereo is in my bedroom, it only goes in for shows/spl competitions.

fifth of all, u ever see those huge spl installs?? those where they have wall's of speakers and many amps and batteries.....do u think they use fuese???? there is no fusees big enough to fuse all that. those guys simply do not use any fusing.

sixth of all, use of a fuse restricts the allowed current to pass through the power cable, although most of u dont care it's a big thing for me, i need my amps to get all the current they need. I used to have a fuse and when i took it out i gained 0.7 db's on my spl score.

perhaps u thought i was some idiot off the street who think's he's too cool for a fuse....if so that could not be more wrong.

Soundscare

ps. there is no rule that says u have to have a fuse, its a simple safety suggestion that is in the rule book. i can show u pics of some record holding spl installs where it's clear there is no fuse.

u ever heard of an amp under the hood of a car??? probably not and u are probably saying wtf??? what moron would do that??? i will try to find that pic from 2001 Db Drag finals that shows exactly that being done and a record being set.

imported_~ILLEST CIV~

Hey soundscare thanks for the info and advice and thanks to everyone else.....i found hte problem......it was my power in to my amp the main power...the wire was touching something else..i dunno if thats what caused it to blow my fuse in my amp......replaced it today....and it'z bumpin again..........lol

i was just wondering....maybe im not reading right.....but i've seen some guys put bigger amped fuses in there amps.......that'z why i was wondering about that?........what is the effect if done?......supposedly u guys are saying fires?........is that true?