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[ChristianDebur]

Hello everyone, I'm from germany and I hope you guys can help me.

I purchased a 482 and 480 used (here) and I don't know if I'm the problem or that i bought it used.

Everytime, when i connect the outputs of 480 to my system, i hear instantly a very high digital noise. I hope my configuration is wrong or where could this sounding noise could come from?

I hope you have some expierence with this kind of a problem and can help me!

[David Sturzenbecher]

Sounds like they are broke...


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[Keith Broughton]

Hello everyone, I'm from germany and I hope you guys can help me.

I purchased a 482 and 480 used (here) and I don't know if I'm the problem or that i bought it used.

Everytime, when i connect the outputs of 480 to my system, i hear instantly a very high digital noise. I hope my configuration is wrong or where could this sounding noise could come from?

I hope you have some expierence with this kind of a problem and can help me!

Try connecting to the amp through transformer isolation and see if that helps.

[Branko Pucekovic]

They are broken, I have such case once. Contact the nearest authorized Harman service

[Jean-Pierre Coetzee]

Hello everyone, I'm from germany and I hope you guys can help me.

I purchased a 482 and 480 used (here) and I don't know if I'm the problem or that i bought it used.

Everytime, when i connect the outputs of 480 to my system, i hear instantly a very high digital noise. I hope my configuration is wrong or where could this sounding noise could come from?

I hope you have some expierence with this kind of a problem and can help me!

Going to bank one some faulty caps in the power supply, have it serviced but a decent service center.

[ChristianDebur]

Try connecting to the amp through transformer isolation and see if that helps.

Wow, thanks a lot. Simple, but it worked!

[ProSoundWeb Community]