I have always been told that more power is better , even if it is more power than you speakers ratings so i ordered a new baby.
My current setup
Onkyo 717 receiver
Polk 660 subwoover
Parasound 2125 bridged = 300 watt driving Polk csi A6 centre
Parasound 2125 = 125 watt X 2 running polk RTI A3...