Question about Behringer EUROPOWER EP2500 Amplifier

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I get a constant noise after I plug in the guitar

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  • peter_nejsum Jul 22, 2009

    its a Behringer AC108 Vintager amp, only one guitar input...when I start it up, its silent for a few seconds, then the noise starts...and when I plug in the guitar, the noise is still there

  • peter_nejsum Jul 22, 2009

    its a Behringer AC108 Vintager amp, only one guitar input...when I start it up, its silent for a few seconds, then the noise starts...and when I plug in the guitar, the noise is still there

  • Rommel Cana
    Rommel Cana May 11, 2010

    hi, is there guitar input in EP2500? maybe on your mixer

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The reason for the few seconds delay is that this amp uses a vacuum tube preamp which has to heat up before it operates.
Now with most amps at high gain you will get some noise, but it should be well below the level when you are running program material through it. The statistical electronic noise will be more of a hiss. If it is hum you are getting, then the filter caps MAY have failed. Also if you have light dimmers can sometimes get into the equipment.
First step is describing the type of noise. Behringer is VERY stingy on supplying schematics. Essentially they WON'T unless you are one of theior certified techs.
Your amp SHOULD be simple enough to fix without schematics UNLESS it has one of the Behringer digital effects. That board has a chronic failure of the DC filter cap.

Posted on Jul 31, 2009

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