The M80's being a 4 ohm load will be driven easier and louder than the 6 ohm VP150 at the same settings, so it makes sense that the Vp 150 was having a hard time keeping up. As was stated a few extra decibels on the setup will negate the difference.


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