@atmasphere It's not so much high volume I'm after but dynamics. I think too that an amp with around 100W and a good power supply is enough. I had a ML No.331 for some time and it was 100W and 100Kg (110 lbs). BIG power supply.
I listen to a lot of classical music live so I know what it should sound like. The thing I miss the most is often dynamics an air.