Yesterday I had an electrician at the house attempting to resolve an issue in our bathroom. Between 100 m.p.h. talking and inattentiveness (on his part), it didn't dawn on him (or me and my wife) that the electricity was still on via the junction box in the basement . He touched a connection of some sort at the back of a switch and caused the power to go out, thus warranting a trip down to the basement to set the jumper switch back to its correct position and restore power to that section of the house. When the power was restored I was able to turn both my server, preamp, and power amp back on. Everything was normal minus the volume of playback. From that moment forward, I have had to turn the volume on my preamp waaaayyyy up compared to its historical norm just for music to sound the same as it used to at a prior lower volume setting. I know quite few fellow AKers not only listen to tunes but actually work on/build/service their playback equipment. Having said that, does anyone have a remote idea as to what may have happened to my preamp and/or amp? I spoke to a local repair shop a few minutes ago and the owner/technician said he'd take a look at both but promised no guarantee as to servicing it as both the preamp and amp are 2004 B&K Components, Ltd. models (PT5 preamp and ST125.2 power amp) and the original company was "bought out" (by ATI in 2011). Any suggestions/help would be more than appreciated.