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Setting up alpine amp

I have an alpine amp MRH-F255 for my car with no manual.How do i set it up properly because i am only getting a pop noise when i am suppose to be getting a bass sound from my 12" sub?

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Check for proper ground also main12v and ignition

Posted on Sep 08, 2008

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Hello rsnyder_223,

As long as the gain is adjusted properly for the input, there should be no problems with the amp.

The head unit preamp output is probably a little low or there is too much voltage drop on the RCA's. It doesn't take much of a drop when you are working with such a low level to begin with. That's one reason that Alpine gives you the option to select an input level.

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