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Old 07-23-2011, 04:32 AM
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Default Amp Overheating :(

I just bought a Soundstream Rubi 2500D and I'm running it at 1 ohm. 1/0 gauge power and grounds. I have the gains set correct as I use a oscilloscope to set them. My sub polarity is correct as well. At first when I installed it i thought maybe my power and ground was too long being over 18" long.


So I flipped the amp and shortened my power and ground connections.




I still overheat and the fans in the amp make noises, but are still working and spinning as they should I opened it up to check for any circuit damage ect, and found nothing. Any and all help is much appreciated..
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  #2  
Old 07-23-2011, 04:36 AM
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it looks like you have a weak ground. that is very flimsy steel that is only tack welded, look for a stronger point, like a strut tower or drill into the thick unibody supports
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Old 07-23-2011, 04:48 AM
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Originally Posted by ellocojorge View Post
it looks like you have a weak ground. that is very flimsy steel that is only tack welded, look for a stronger point, like a strut tower or drill into the thick unibody supports
The ground I'm using is the same ground I used for my Sundown SAX-1200D I guess a bigger amp needs a better ground.. Yeah I'll have to pick up some bolts... I cannot get to the strut tower due to my box, but by unibody are you referring to the double thick steel wall that is in the trunk?
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Old 07-23-2011, 07:28 AM
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Since you say you have an oscilloscope I will assume you have a multi-meter. To rule out if it is a ground / power wire problem, measure the DC voltage directly at the amplifiers power terminals (directly where the 12v+ power & ground wires go into the amp) while driving it as hard as you normally would (or the volume where it is getting hot), and see if it drops real bad. If you have a bad ground / power wire connection the voltage will drop under load from the added resistance from a weak point in the circuit path. If the voltage stays the same or is within operating specs of your amp then I would have to say the problem is somewhere else.

I do not know what subs your running or the voice coil specs, but if it were wired too low it could be the cause of your overheating; accidents happen when wiring sometimes. I am sure you have it wired right, but never hurts to double check if you did any wiring to them before changing to the Soundstream amp.

Amps do get hot by nature when running them towards the upper end of there power range, but as long as it is not burning your hand & you can keep your hand on it, it may be operating normal. Now if the amp is actually shutting down in protect mode, then you definitely have a problem & possibly with the amp. But check all wiring first.
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Old 07-23-2011, 08:56 AM
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check to see if the fan is all gunked up with dust or something, maybe use a can of air to clean inside of amp but be careful when doing this.

also make sure the remote wire isnt loose or anything and that you have the batteries to support this amplifier

Last edited by darkkon; 07-23-2011 at 08:59 AM.
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Old 07-23-2011, 09:37 AM
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Quote:
Originally Posted by ellocojorge View Post
it looks like you have a weak ground. that is very flimsy steel that is only tack welded, look for a stronger point, like a strut tower or drill into the thick unibody supports
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Old 07-23-2011, 09:43 AM
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whats your electrical under the hood? that amp a refurb? ground does look super thinsky. Pioneer621 is absolutely on track,....thats it
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Old 07-23-2011, 10:18 AM
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i have yet to see why the amp is supposedly overheating...

I have also yet to hear the amp was working before in his possession too..

Sounds like you bought a damaged amp.
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Old 07-23-2011, 12:32 PM
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Quote:
Originally Posted by Pioneer621 View Post


Since you say you have an oscilloscope I will assume you have a multi-meter. To rule out if it is a ground / power wire problem, measure the DC voltage directly at the amplifiers power terminals (directly where the 12v+ power & ground wires go into the amp) while driving it as hard as you normally would (or the volume where it is getting hot), and see if it drops real bad. If you have a bad ground / power wire connection the voltage will drop under load from the added resistance from a weak point in the circuit path. If the voltage stays the same or is within operating specs of your amp then I would have to say the problem is somewhere else.

I do not know what subs your running or the voice coil specs, but if it were wired too low it could be the cause of your overheating; accidents happen when wiring sometimes. I am sure you have it wired right, but never hurts to double check if you did any wiring to them before changing to the Soundstream amp.

Amps do get hot by nature when running them towards the upper end of there power range, but as long as it is not burning your hand & you can keep your hand on it, it may be operating normal. Now if the amp is actually shutting down in protect mode, then you definitely have a problem & possibly with the amp. But check all wiring first.
I have a stinger volt volt meter hooked up to my rear battery i havent checked how bad it drops since i changed the ground and power wires yet though. Yes it is going into protect mode and i can easily cook a egg on the amp.
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Old 07-23-2011, 12:34 PM
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Originally Posted by shizzzon View Post
i have yet to see why the amp is supposedly overheating...

I have also yet to hear the amp was working before in his possession too..

Sounds like you bought a damaged amp.
It was bought brand new, i will try a better grounding point to see if that will help.
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