My Elgar Plus makes noise after warming up for 10 minutes

Support
1

Hello,
My Elgar Plus makes noise after warming up for 10 minutes. I’ve already replaced the larger power capacitors, but it didn’t help.

I know this problem has been discussed before, could you please help?

Thanks
Massimo

2

Hi Massimo. I see that this is your first posting here so I hop e that we can be of help.

It may assist if you give us a little more detail about the noise. Do you mean a noise ( e.g. buzzing or a hum) made by the Elgar itself or is it a noise generated by the Elgar but heard from your loudspeakers?

If it is a mechanical noise as per the first example above , this may come from the power transformer . The most common reason for this type of noise is caused by distortion from the mains supply feeding Elgar. The AC waveform is polluted by a small amount of DC current added in error. Solutions include addition of a power conditioner of which there are many on offer.

3

Hi Pete, thanks for the quick reply.

I’ve had the Elgar Plus for 15 years and will try to provide you with more information:

  • When I turn on the unit, I hear a hum coming from the speakers. It’s not a constant hum, but a modulated hum.

  • Sometimes the hum gets very loud.

  • If I turn off the power amplifiers, the hum is clearly audible on the Elgar Plus’s transformers.

  • I already use a power conditioner that blocks DC current.

Thank you
Massimo