Still looking to replacing my power amps and thinking of the nord acoustics multi channel ones. My surround speakers are 94db and front 3 speakers 97db. I've decided on the 200 watt hypex ncore ones for surround a 8 channel version. For my fronts I could get the same 200 watts in a 3 channel version or do I go for the 500 watt version for my fronts? On paper my fronts been 97db need around 32 watts to reach reference level. Would I gain anything? Or just get 11 matching channels?