I sent the unit back to the audio dealer I purchased it from,
The Music Room Audio for testing and troubleshooting. Noted below is my email exchange:
TMR - “We so far haven't been able to replicate the issue with general testing, it's been passed to our repair specialists to try and look into the unit further. I would expect another day or two for that to happen”.
Me - I contacted the manufacturer and they had me check the fuses, one had blown, I replaced it however the unit made a loud buzzing noise coming from the back of the amplifier by the on off switch. At that point I shut it down.
TMR - Hello Jeff, Thanks for following up, it appears the unit is working well. There were some solder points on the internal boards that were faulty and we have corrected. Normally this would be about $300 in labor, however since you bought from us, we are only charging a 1 hour minimum of the $95 and return shipping. If this is agreeable, I will get an invoice over to you and we can get this shipped back to you asap.
I paid for repairs and shipping. I plugged the unit in and it has the same buzzing noise.
I contacted Klaus to get his feedback and he suggested I leave it on for a few days., However the buzzing is still there.
I contacted TMR. Here is there response: “Hello Jeff,
Thank you for the video, this sounds like transformer buzz, and can differ based on the power coming into the home. Are you using any line conditioning etc.? Having some transformer noise is normal on any unit, and based on the power coming into the building that can change from place to place. We can get this back to us to look over again, however this was quiet here and I suspect that we will not be able to do anything to quiet this any more for you with anything we can do to the unit”.
I have plugged this amplifier in at different locations, Office, neighbors home, a friends home with the same reults. The amplifier is not next to or connected to any other equipment.
Does anyone have suggestions? Thanks for the input. FYI, the amplifier was dead quite before the fuse blew.