Well, I'm going to pull back a little here and mention the future "now" is coming on quickly. How quickly this forum may not even be aware.
I believe the days of big amps is almost gone. To follow will be high mass speakers. The small Class D amps are simply blowing the doors off of the big amp designs with 2.1 or 2.2 setups. To stay in context I tune and don't use these amps with their chassis.
mg