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Message Forums Car Stereo Message Forums > Amplifiers > amp help
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seanhennesey
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 amp help

can some one answer these questions for me ok so i have a system in my truck and once i turn it up to about thirty it will cut in and out like its not gettin enough power. cand some one please help!! i have stock alternator and everything still so maybe thats the problem idk please help!!! im workin with a 750 or 725 amp not big but enough what size wat should my two 12" subs be?

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New Post 09-26-2011 11:36 AM
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SINTORMAN
Senior Member

 

When you turn it back down does the sound kick back in? Do you have to turn your car off and then back on again for the sound to return? Is it just the sub output or all sound that turns off? Does the amplifier ever go into protect? Most likley you have a bad ground and so when your amplifier trys to put out more power it volt drops and then turns itself off to protect itself.

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New Post 09-26-2011 04:39 PM
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seanhennesey
New Member

 Amp help

ya wjen o turn it back ddown it will com back on but if I turn it back up it will cut off again and how do I get a better groumd thamks man you the only ome that will help

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New Post 09-26-2011 08:02 PM
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SINTORMAN
Senior Member

 

For anything under 1000 watts then all you need is to have your ground to a non painted metal surface. Make sure your ground is tight. 2 things... Do you have a DMM, if not get one and measure your voltage at the amplifier when you turn it up. Do you have the big3 done?

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seanhennesey
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cool and i have a dmm and dont have big three yet so i pretty much bought a capacitor for no reason lol!

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New Post 09-27-2011 09:13 AM
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seanhennesey
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also what should my dmm be around and if i have a right size speaker box but not enough air space could that also effect my subs!!

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New Post 09-27-2011 11:05 AM
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