To audibly hear a difference the power needs to double, so if you get the 3808, you will need an amp that is capable of 260W/ch to get a noticably louder system, not that you might not hear it cleaner at high SPL for the same amount of power, say an amp with 150W, since it appears outboard amps tend to have a little more headroom built in(lower specs than actual output).


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