zimick
I ended up buying a pair of the Harbeth SLH 5 Anniversary about two years ago.
I've listened to the Harbeth 30 and 40 at Gig Harbor (WA) Audio (a fine store to visit)... sweet speakers! That "BBC sound" is special. It is interesting that their enclosures are pretty live, and are part of the sound they create much like the body of a guitar, with the resonances. Or so I have read. Richard V builds the cabinets for the Treo CT and Quatro (and the others I assume) with a box in a box, to eliminate as much cabinet resonance as possible (again, what I recall reading). Two different approaches, both right for each maker. That is the fascinating thing about speaker design. Magico takes it to the extreme, CNC milling their cabinets out of aluminum and using carbon fiber. VERY expensive, but they get an inert cabinet.
Someone else pointed out that the Treo is designed to go very near the front wall. which is something I need. The planars like Maggies do best 5-6 feet from the front wall, and my room is too small.
Cheers.