Lots of folks say that the Cronus Magnum has a distinctly untube like sound...umm...I'm looking at tubes for a reason!
That's the first time I've heard the Cronus Magnum described that way! I bought mine about a year ago now and have been thoroughly enjoying it. It definitely has the tube sound - I've got a Fisher 800B to compare it to, plus a score of refurbed Magnavox's.
I wouldn't write off the Cronus Magnum without hearing it for yourself.
I'll be watching this thread as hopefully this year I will be upgrading the amp for my LS50s with a tuber.
How about the new Jolida Fusion stuff? They are tube type switchable (similar to Rogue) and I like that the integrates have a direct switch to run them as power amps only. And have read they are more tube like sounding.
I'd go with the Line Magnetic 216IA. It will be enough for the Harbeths. It even powered my Quad ESL-63 USA Monitors when I had them. I had an original Cronus (not Magnum) and only after upgrading to the 216 did I notice how lacking the Cronus truly was. Rolled off highs, flabby lows. The 216 just blew it out of the water in every aspect.
This one has me very interested! Priced well and seems to garner a bunch of positive remarks.