Today I had the music cranked up while I was outside working and I heard the volume go down, then a few minutes later it came back up. I went inside and noticed that my amp (Rotel RMB-1075) was going into protection mode on the right and left channels. The receiver was set to 5 channel music. I changed it to 3 channel, and turned it down to 72 from 75. It's range is from 1 to 90, It never happened again. My current setup allows for about 3 inches on top, and about 1.5 inches on the side.

Setup includes
M80's, vp150, and QS-8's.

Thanks,

Rick