Hello Audio people
I have a 150 watts Sansui Amp of the 1980's ( 75 RMS per channel) . It sounds great. Except for the the mild "Krrrrrrrrrrr..........." noise it makes when I place my ears close to the tweeters. The noise is not audible when there is music playing, but when there is no source connected to the Amp, I can hear this mild noise. The Amp power cord is two pin and hence there is no grounding. I tried to ground the metal body of the AMP , but that didn't help. Can you please provide a solution and advice the root cause of this problem. Thanks.
I have a 150 watts Sansui Amp of the 1980's ( 75 RMS per channel) . It sounds great. Except for the the mild "Krrrrrrrrrrr..........." noise it makes when I place my ears close to the tweeters. The noise is not audible when there is music playing, but when there is no source connected to the Amp, I can hear this mild noise. The Amp power cord is two pin and hence there is no grounding. I tried to ground the metal body of the AMP , but that didn't help. Can you please provide a solution and advice the root cause of this problem. Thanks.