I went from 1 amp to 2 and aside from the obvious power increase and all the benefits from that, I'm now getting better channel separation and imaging. As an unintended byproduct, they also provide nice heat sources in the winter for a north-facing living room as well as the aforementioned "cool" factor as all those tubes just glow their little hearts out... Now that I'm there, I wouldn't have it any other way.
