Question about NAD C325BEE Amplifier

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Sound cuts off

My NAD C325BEE amplifier sound cuts off after 15 minutes. If I switch it off for half an hour or so, then switch back on the sound returns - but cuts off again after 15 minutes! Anyone got any ideas?

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  • NADChris Sep 16, 2008

    Hi, thank you for your response. The amp sits on top of a metal cabinet situated indoors. I connected it to another hi fi system in another room on a wooden cabinet to see if the problem was caused by external factors. It still cut out after 15 minutes. I also tried a Rotel amp on both the hi fi systems and there was no problem. Clearly it is the NAD that is at fault. 

    Does this help?


  • NADChris Sep 17, 2008

    I don't recall the light going into red, I'm certain it stays green.  The amp just stops playing. Switching it off and back on again does not do the trick. If I leave the amp off for a few hours it will work fine until about fifteen minutes later...then back to square one. The amp gets warm but no more than I'd expect.

  • NADChris Sep 18, 2008

    Hi dtaylor91

    Yes I think you are right. I already anticipated this and have given the amp to a friend of a friend who works at the BBC. He is going to try and locate the fault. Strangely enough, the first friend tried the amp at his house and there was no fault at all. I sent the amp to him by UPS and wonder if vibration caused by the journey dislodged the problem. Maybe it was caused by a dead bug in the works. Who knows...I will see what the BBC guy comes up with!

    Thanks for your help.

  • dtaylor91 May 11, 2010

    Ok, gotcha. Now, does it go into protect (red power light), or just shut down?

  • dtaylor91 May 11, 2010

    Where is the amp located? Cabinet, out in the open, etc.

  • faridzal Sep 19, 2011

    Hi Chris... Have you found out the problem? I am also having the same problem with my NAD 325BBE... The sound just died off after 10-15 minutes. There is still sound by you have to crank up the volume knob up, but still the sound is soft and distorted.



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  • 31 Answers

OK,  That means there's some kind of crazy fault in the temperature sensing circuits. I'm afraid you'll have to take it someplace and have it looked at for a more thorough diagnosis.

Posted on Sep 17, 2008


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