Tube fan.

Personally speaking you don't really need to look at the expensive stuff from Audio Note. The lower stuff gets you there. It's a refinment process going up the lines. Art's AN E/Spe HE is $7,500 and that's the speaker I have my eyes on. The external crossover in the more expensive lines is better but unless you really sit them side by side it's not like it's going to be terribly noticeable. To me it is more about refinment but the general frequency response and drive and bass is unchanged. Resolution increases though but you then need the partnering gear so the amount of money gets stupid fast.

I saw the picture of the room by a fellow reviewer - what a stupid place for the air conditioner - why don't they use those top of the wall air conditioners like they do in Asia - those are not placed in corners. Close to the side wall kinda is okay but since they factor the back wall into the meausrements - well I guess it's the best they could do given what they had. Still it's tough to lose 12-18db in the 20hz range by placing them the way the did. Still, sounds like people felt they did okay given the hands behind their back positioning.