Calibrate the 150 with the 100 disconnected and then check to see how much more the 100 reqires to match the level of the 150, I think I found they are within 1-2 db of each other and never noticed a difference when I ran them in parallel with one above and below my TV.


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