Like I said, go for the 60s first, then if you are not happy get the 80s. The differences are there but only really noticeable when compared together. If you do end up with 80s try them as is and if you do experience shutdown with them then go for a seperate amp.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70