I don't know what audioman is saying either. I think he's saying it can always be better. Maybe, maybe not.
But, I had a PL Dialogue One for four years, then moved up the link to the Dialogue Premium HP Integrated. It's great with the standard EL34 tubes, but it is a step better with KT150s. I rolled input tubes for a while. Eventually I went back to the factory input tubes and I was reminded that PL puts things together the right way. The factory input tubes are a great match for this amp.
I'm happy with mine, two years now, and see no reason to ever get anything else.
But, I had a PL Dialogue One for four years, then moved up the link to the Dialogue Premium HP Integrated. It's great with the standard EL34 tubes, but it is a step better with KT150s. I rolled input tubes for a while. Eventually I went back to the factory input tubes and I was reminded that PL puts things together the right way. The factory input tubes are a great match for this amp.
I'm happy with mine, two years now, and see no reason to ever get anything else.