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help with system

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Old 11-23-2005
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help with system

hey guys my friend has a problem with his system, he has a MA 121XQ and a MA 689i amp and when he tries to turn up the amp the red light comes on, it shuts off until you turn it down.. anyone know why it owuld be doing this?


-thanks
 
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Old 11-23-2005
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whats the watts on the sub and the amp???
 
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Old 11-23-2005
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Sounds like an overheating problem in the amp or there is high resistance in a circuit internal to the amp and it works fine with low current and can't handle high power.
 
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Old 11-23-2005
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sub=600, amp=800 maxed, rms for the sub is 300 and for the amp is 400 rms
 
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Old 11-23-2005
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he can only turn the volume up about halfway around 20 , if he goes higher it cuts off
 
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Old 11-23-2005
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and he says its not overheating
 
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Old 11-24-2005
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too low guage wiring?
Blown fuse?
 
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Old 11-24-2005
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probably has his gains too high.. turn them down. it's going into protection mode (the amp will stay on, but won't allow itself to power anything) until you correct it (turn it down with the volume ****, or turn the gain down on the amp itself). anyhow, turn down the gains.
 
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Old 11-25-2005
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Originally Posted by Strider0O0
probably has his gains too high.. turn them down. it's going into protection mode (the amp will stay on, but won't allow itself to power anything) until you correct it (turn it down with the volume ****, or turn the gain down on the amp itself). anyhow, turn down the gains.
i agree i had the same problem when i installed my system tuned in the gains and works at full volume with no problems....
 
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