Umm Houston we have a problem.... A big one

[Pyrofan]

So, wired up my buddy's system. All playing good. He leaves. Hour later he drives to his friends

house and a picks up some things. When he is getting ready to leave, the amp is making heart beat

sound and then becomes a ******* sound. He drives back to my house and the amp is hot as hell

and smells. I know something is burning. I unhook the ground and power and the let the amp cool

down. What could this be? Tried Google'ing it and came up empty. Hope the XFL 15's didn't blow

with the amp. Any help is welcomed!!!

Click to read more...

 

[brian84corvette 10+ year member]

un plug rca cables. may be getting interference thru them ?

 

[jrdnhsnbrg 10+ year member]

Extreme clipping, low voltage, bad ground, probably killed the amp. What amp is it?

 

[Pyrofan]

un plug rca cables. may be getting interference thru them ?

Tried that. Did nothing.

Extreme clipping, low voltage, bad ground, probably killed the amp. What amp is it?

RUB2500.1. Ground was good I believe. Gains were set with DMM. The gains were not maxed. We set them low since we didn't have a lot of batteries. The car has a voltage indictor and it never got below 14v.

 

[jrdnhsnbrg 10+ year member]

Tried that. Did nothing.

RUB2500.1. Ground was good I believe. Gains were set with DMM. The gains were not maxed. We set them low since we didn't have a lot of batteries. The car has a voltage indictor and it never got below 14v.

That doesn't mean there's not clipping, he probably maxed out the HU's volume and clipped the hell out of the signal there. And setting the gains with a DMM isn't a fireproof method, a DMM doesn't show clipping.

 

[Pyrofan]

That doesn't mean there's not clipping, he probably maxed out the HU's volume and clipped the hell out of the signal there. And setting the gains with a DMM isn't a fireproof method, a DMM doesn't show clipping.

Well yes im aware of that. I believe the amp may have had a problem with it from the start. Could you really blow an amp in 10 min of playing it?

 

[jrdnhsnbrg 10+ year member]

Well yes im aware of that. I believe the amp may have had a problem with it from the start. Could you really blow an amp in 10 min of playing it?

Yeah, if done properly. Was the amp new?

 

[Pyrofan]

Yes

 

[jrdnhsnbrg 10+ year member]

Yes

Rarely do amps come from the factory. It's possible, but I doubt that's the case.

Here's what I bet happened. You guys got the system all dialed in and your boy went to go where ever he went and cranked that volume knob all the way to the max in sheer enjoyment and sent a practically square wave to that poor amp, killing it.

 

[Pyrofan]

Rarely do amps come from the factory. It's possible, but I doubt that's the case.
Here's what I bet happened. You guys got the system all dialed in and your boy went to go where ever he went and cranked that volume knob all the way to the max in sheer enjoyment and sent a practically square wave to that poor amp, killing it.

Well it was from ebay

 

[jrdnhsnbrg 10+ year member]

Well it was from ebay

Was the box sealed? If it was working properly before he left it was probably fine and he blew it.

 

[Pyrofan]

Was the box sealed? If it was working properly before he left it was probably fine and he blew it.

Ported

 

[jrdnhsnbrg 10+ year member]

Ported

Lol I meant the box the amp came in.

 

[Pyrofan]

Lol I meant the box the amp came in.

It was a little beat up.

 

[jrdnhsnbrg 10+ year member]

It was a little beat up.

Alright, that puts a damper on things. We have a couple situations to deal with now. First option - the amp was not new, was working properly but was used previously and beat on with low voltage and clipping and your friend's short use was the straw that broke the camel's back. Second option - the amp was new, your friend killed it, as previously described. Third option - the amp was new but was defective, and appeared to be working properly when you set it up, but that short use killed it.

See a theme here? Regardless of the condition of the amp upon purchase it is dead now. You probably won't be able to get anything from the seller because it's Fleabay. Avoid that place at any and all cost for expensive equipment.