parisphoto,
Unfortunately I have experienced the same event. I keep my source equipment and preamp in a closet out of view. I like to do my listening in very dark conditions and I inadvertently turned up the volume when I thought I was turning it down. I often turn the volume down before I start playing a disc. The music came on extremely loud and I quickly turned down. The sound since this occurred has been whispy or zingy. My dealer changed tweeter but that did not fix the problem. We suspect that I have damaged some transistors in the crossover and they need to be replaced. This has not happened yet.
I too thought that the difference in sound was in my head but it has been confirmed by others. There was no sign of physical damage. You need to contact your dealer
Unfortunately I have experienced the same event. I keep my source equipment and preamp in a closet out of view. I like to do my listening in very dark conditions and I inadvertently turned up the volume when I thought I was turning it down. I often turn the volume down before I start playing a disc. The music came on extremely loud and I quickly turned down. The sound since this occurred has been whispy or zingy. My dealer changed tweeter but that did not fix the problem. We suspect that I have damaged some transistors in the crossover and they need to be replaced. This has not happened yet.
I too thought that the difference in sound was in my head but it has been confirmed by others. There was no sign of physical damage. You need to contact your dealer