mitch4t is exactly right. You make the same post with slightly different wording twice on the same day. You should have had it serviced. Anyway, what is your point in posting it twice?
phase linear amplifiers
back in the early 70's I bought a phase linear 400 amp. never will buy phase linear again. in 2000. it fried 3 of my speakers. later on I read they they were known to do this. they were cheap money for the big watts but were not well designed well to work under stress. I have McIntosh now. no worrys!