I ****ed up help!

[T3mpest 10+ year member]

Alright I was helping a buddy install an amp and we are having issues to say the least. I got it hooked up and powered on fine. However when I raise the volume knob even a bit the amp goes into thermal protection mode. At the volumes that it's not in protect no power seems to be going to the sub. Anyway right as we were getting ready to shut it off a spark came out the back of the amp near the speaker leads/pos/neg/etc. After that the amp shut itself off. We pulled the fuse out of the amp and it is indeed blown with a light scorch mark. Other than double checking the ground what else can cause this? It looks as though the inline fuse from the battery is intact. The amp was set to bridged mode. I hooked the negative and positive terminals that were indicated directly on the amp for bridged mode to one another and then used the other positive and negative terminals to hook the sub up. It's a 4ohm sub and the amp is stable at 4ohms bridged.

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[kfx450r 10+ year member]

Alright I was helping a buddy install an amp and we are having issues to say the least. I got it hooked up and powered on fine. However when I raise the volume knob even a bit the amp goes into thermal protection mode. At the volumes that it's not in protect no power seems to be going to the sub. Anyway right as we were getting ready to shut it off a spark came out the back of the amp near the speaker leads/pos/neg/etc. After that the amp shut itself off. We pulled the fuse out of the amp and it is indeed blown with a light scorch mark. Other than double checking the ground what else can cause this? It looks as though the inline fuse from the battery is intact. The amp was set to bridged mode. I hooked the negative and positive terminals that were indicated directly on the amp for bridged mode to one another and then used the other positive and negative terminals to hook the sub up. It's a 4ohm sub and the amp is stable at 4ohms bridged.

Maybe you fugged up ur wiring and accidently have it wired at like 1 ohm and the amp cant handle it. Or its a defective amp

 

[dman4486 5,000+ posts]

Alright I was helping a buddy install an amp and we are having issues to say the least. I got it hooked up and powered on fine. However when I raise the volume knob even a bit the amp goes into thermal protection mode. At the volumes that it's not in protect no power seems to be going to the sub. Anyway right as we were getting ready to shut it off a spark came out the back of the amp near the speaker leads/pos/neg/etc. After that the amp shut itself off. We pulled the fuse out of the amp and it is indeed blown with a light scorch mark. Other than double checking the ground what else can cause this? It looks as though the inline fuse from the battery is intact. The amp was set to bridged mode. I hooked the negative and positive terminals that were indicated directly on the amp for bridged mode to one another and then used the other positive and negative terminals to hook the sub up. It's a 4ohm sub and the amp is stable at 4ohms bridged.

I know I'm out of my mind right now, but this doesn't sound right....if I am reading it correctly....

 

[enoot 10+ year member]

lol wut im high and cant grasp this shit right now

 

[revrider1 5,000+ posts]

What amp?

 

[dman4486 5,000+ posts]

when you bridge an amp, you don't use all 4 terms. you only use 2 (+ from one channel and - from the other)

 

[KyleBechtold 5,000+ posts]

lol wut im high and cant grasp this shit right now

bridge, find, jump /life

 

[Goindef154 5,000+ posts]

I know I'm out of my mind right now, but this doesn't sound right....if I am reading it correctly....

Sounded fine to me //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[SethPhillips 5,000+ posts]

i could see it being a impedance issue if the volume got a lil bit higher then went into protect.

are you sure you didnt wire the amp's power wires backwards on accident? even a little strand of wire hit another terminal??

how old is the amp? will it void the warranty if you take a look inside to see if anything is possibly burnt up??

 

[ciaonzo 5,000+ posts]

Alright I was helping a buddy install an amp and we are having issues to say the least. I got it hooked up and powered on fine. However when I raise the volume knob even a bit the amp goes into thermal protection mode. At the volumes that it's not in protect no power seems to be going to the sub. Anyway right as we were getting ready to shut it off a spark came out the back of the amp near the speaker leads/pos/neg/etc. After that the amp shut itself off. We pulled the fuse out of the amp and it is indeed blown with a light scorch mark. Other than double checking the ground what else can cause this? It looks as though the inline fuse from the battery is intact. The amp was set to bridged mode. I hooked the negative and positive terminals that were indicated directly on the amp for bridged mode to one another and then used the other positive and negative terminals to hook the sub up. It's a 4ohm sub and the amp is stable at 4ohms bridged.

You're doing it wrong.

 

[HypnoticCure 10+ year member]

this has got to be a joke...

 

[faiz23 10+ year member]

make sure you wire is clean cut and that the terminals like power and ground the wire is not touching each other and causing a short. it does sound like you fugged up and your best bet is to get the amp bench tested at a shop to verify if it is the amp. I think the amp is toast if you replace the fuse and still nothing time to look at getting a new amp unless it is like a zapco dc ref or a mcintosh or some shit but i doubt it if you had that quality stuff you would have hooked it up correctly or paid to have it done.

 

[faiz23 10+ year member]

oh shit i just realized what the **** you said LOL YOU ****ED UP BIG TIME AND I HOPE THIS IS A JOKE

did you have a 4 channel amp and bridge the first 2 channels to each other and then ran the last 2 channels to the sub. It seems like you were feeding power back into the amp LOL. I am sure you do not have zapco or mcintosh quality shit did you read the manual or any **** youtube video or anything before you decided to install the amp.

 

[dman4486 5,000+ posts]

Sounded fine to me //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

so on a 2 channel when you bridge it, you jump from + to - on two channels and then use the other + and - to wire your sub?

that is wrong

 

[gnatnoop 10+ year member]

let me paint you a picture....