amp problems...fuses are sparking?!


littlehat

15+ Year Member

U.S. Military - Active
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Aug 19, 2009
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So i had my amp set up for a few weeks and it was working fine. All of a sudden it shut off on me. I checked the fuses and they were blown. I put new fuses in there and turned my car on...and the amp turned on and then sparked from inside the amp and started smoking and smelled like burnt plastic. i immediately turned the car off. Checked the fuses again and they looked fine, but when i try and put new ones in it sparks on contact. What happened here if it was working fine for weeks?
 
Sounds like something got over loaded and melted and its now grounding out the whole time. I would disconnect that amp ASAP.

The remote wire(usually blue) that goes to your amp from the HU basically sends a low power signal to the amp telling it that it can turn on and then the amp will draw power from the battery. It should not be drawing power from the battery when the car is off. Most likely your amp is grounded somewhere or fried and grounded itself inside... what brand is the amp?
 
sounds like you have an internal short in your amp i hope its not worth lots of money because it sounds like its fubar i would be tempted to open it up and check out where the smoke was coming from theres should be signs of excessive heat somewhere but more than likely its already too late.
 
like you said it probably is too late now, but for future reference i'd like to know what i did wrong
 
exactly, but i also wasnt sure if you are supposed to bridge the subs together and solder them into like an aux kind of plug for the other side where it says "in" since it is a mono amp. but my friend told me to hook them up like this, but i've still been skeptical.
 
Wait your buddy said to put aux input plugs onto the subs and plug them in? That would not work I would stop listening to your buddy.

You are supposed to put the power wire directly fron the battery with a fuse, a ground to a good ground in the cab. Then the remote wire runs to the remote on the amp and run a set of audio red/white cables from the sub output on your HU to the input side of your amp. I don't remember how the subs go but in series I think the resistance drops and in parallel its the same. but you can bridge them then.
 
No no my friend hooked it up correct then. would this set up work better than what i showed and take less power to run(2ohms). http://i612.photobucket.com/albums/tt201/littlehat/ampsetup-1.png
would i split the wires at the amp to touch both the negatives/positives with this setup?

The previous post ran 4 ohms i believe. Is either way easier on the amp? I have plenty of bass with two 10's and i figured at this point i'd like to make it easier on the amp if possible.
 
when you bridge it you are putting big load on the amp everytime it hits...the lower the ohms the easier it is on the amp...id say run it to 2 ohms you will be happy that you did and play around with it and see if you are getting better sound quality out of 2 ohms unbridged...i had my amp hooked up bridged and running 4 ohms and the heat from the amp was insane when i wired it down to 2 ohms i could touch my amp when at 5 ohms i would burn my hand...hope that helps a little bit
 
how are these wires set up to run 2 ohms but unbridged. i am not understanding what exactly being bridged is besides the fact that 2 subs are being combined in some way.
 
Bridged basically means that out of a 2 channel amp like yours you use the positive from the first channel and the negative from the second channel or however that particular amp diagrams it. I have a Dual 596watt amp that has 2 channels and goes liek this
CH1 CH2
+ - + -
^-------^ Put the wires like this and its bridged regardless of how many subs you are running.
 
okay thanks. So basicly i have to run it at 4 ohms or lose the power of a channel if i want 2 ohms which makes no sense at this point. This amp was under the mono amp section so i'm kind of screwed at this point, but oh well i've definitely been learning quite a bit. Thanks so much for the help guys
 
Well I didn't look at the amp closely but it looked like a 2 channel amp. But if you replace the amp with a mono channel amp then you can run them at 2 ohm without losing a channel.

But I would look into a dual channel amp and call the people at crutchfield, tell them what you have and what you want out of it and they should be able to find you some options.
 

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