McIntosh MC 2106: HUM!!!

I called McIntosh tech. They suspect a transformer because the L gain hum increases with additional volume while the R channel hum volume stays the same. (Testing without any components). They suggest finding some to test it.

I think it has to do now, with a sensitive combination of 102 db Cornwall’s and poor Source-changing noise of the Eversolo A8. The heavy hum sound has disappeared with the introduction of my Schitt Freya preamp in the loop, and volume control is still performed by the A8… I can live with the small sound now emitting when changing sources from… let’s say ARC to BLUETOOTH to INTERNET RADIO. I never had this dilemma with my Bluesound Node X.

I am thankful that there is now no repairs needed on my McIntosh MC 2105, thus no hum! Amazing.