blowing fuses
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=77504
Printed Date: September 16, 2025 at 5:40 AM
Topic: blowing fuses
Posted By: ugotjewed247
Subject: blowing fuses
Date Posted: May 09, 2006 at 1:34 PM
if i keep blowing fuses in my amp i have obstreved i either
-have a bad amp(its 3 days old)
-shorted out the power wire somewhere
-bad speaker
-0hms across channel
how woudl i find out hwats wrong i think i shorted it out but if i do short it out will my amp be fried after or do i jut have to fix the short
Replies:
Posted By: willdkartunes
Date Posted: May 09, 2006 at 1:48 PM
What kind of amp and speaker are you working with?
Posted By: ugotjewed247
Date Posted: May 09, 2006 at 2:22 PM
cliff designs cd10.1 ab calss monoblock and 2 kicker comp vr dual 4ohms wired to 1 ohm total
Posted By: ugotjewed247
Date Posted: May 09, 2006 at 7:23 PM
could i blow the amp from drawing to much power from the car and grounding out the power supply
Posted By: bazzgazm
Date Posted: May 09, 2006 at 11:41 PM
too small of power wire will definitely heat up and usually melt a fuse.
this would be the case alot of times with overcurrent too.
if you have a dead short, the fuse will pretty much blow either a> it's blown as soon as it touches (power wire grouned) or b> the amp itself is deadshorted inside and will blow when the amp is turned on.
Then there's the case where it plays for a second, then pops.
alot of times this is due to the same as #1(overcurrent) just to a little more obscene level.
or, you have something wired improperly on the subs.
now i will tell you this. there is alot of current running @ 1ohm to create that kinda power.
so, max draw can be in the 120-130range depending on the amp.
class a/b tend to be a little less efficient, and drop them to 1 ohm it gets even worse.
Posted By: forbidden
Date Posted: May 10, 2006 at 3:33 AM
Your amp is a POS I hate to say. No offence intended, we all have had to start somewhere. I used many POS items in my early years as well (actually by todays standards they were amazing as compared to a POS these days). If you are blowing the main fuses in the amp it is a indication of a dead short internally in the amplifier or a dead short on the power line, did you hook power to ground by accident for example?
------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: jt824
Date Posted: May 11, 2006 at 6:27 PM
i have been blowing fuses on my converter
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