After owing ANE’s for a few years I’d say make sure yo give them more power than you think. Audio note tends to over state their efficiency by quite a bit. I found my 300b amp (8wpc) was just not enough to really flesh out the bass properly, think one note bass here. Give them 20-30wpc and they are much happier IMO.
ps; I also have a 845 amp and that was a much better amp on them if not rather hot and expensive to re-tube.
Another option is a parallel SET this will give you more power and have the befits of the SET sound.