Yamaha R-N600A noise

[dave_onstage]

Hi there,

I recently bought myself a Yamaha R-N600A network Hi-Fi amplifier. When the volume is as low as it can go, the speakers and headphone output make a very low humming noise (around 50Hz, audible if close enough to the speaker).
Do you think it may be a defect with the amplifier? Or a ground loop problem? I can often hear electrical humming noises in my house so I guess it's to do with a ground loop.

Many thanks,
David

 

[Al ears]

Hi there,

I recently bought myself a Yamaha R-N600A network Hi-Fi amplifier. When the volume is as low as it can go, the speakers and headphone output make a very low humming noise (around 50Hz, audible if close enough to the speaker).
Do you think it may be a defect with the amplifier? Or a ground loop problem? I can often hear electrical humming noises in my house so I guess it's to do with a ground loop.

Many thanks,
David

Not too sure you can have a ground loop without knowing what you have connected to the amp itself.

 

[dave_onstage]

Not too sure you can have a ground loop without knowing what you have connected to the amp itself.

Thanks for your reply! I had disconnected everything from the amplifier apart from the speakers, and a 50Hz buzzing noise was still audible. Thanks

 

[Al ears]

Thanks for your reply! I had disconnected everything from the amplifier apart from the speakers, and a 50Hz buzzing noise was still audible. Thanks

Ok, thanks. Very odd.
If you got it from a dealer I would take it back and ask to try a different one

 

[My2Cents]

Although the UK version of the R-N600 may come with a 3 pin wall plug I think you will find that it doesn't actually use the ground pin. US spec. versions only come with a 2 pin wall plug (with a standard 3 pin IEC male socket on the back of the amp. the ground pin of which is not used).

 

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