I'd never buy those. They're nice furniture, but that's about it.
First, solid wood is a terrible medium for speakers. I know, I know, it has loads of sex appeal and marketing prowess. How else better to point out the "cheapness" of competing speakers?
The problem is that wood moves a LOT. Anyone who has done woodwork can tell you how pieces they cut in the evening are a different size in the morning. That only shocks the noobs - anyone who has worked with wood learns to deal with it. So if the size of the speaker is constantly changing, it's NOT going to sound the same.
If you think that mimics instruments, think again. I've been playing a wood clarinet over 25 years. Yes, it moves with temperature and humidity. The difference is that you tune it. You have retune with swings in temperature and humidity. These speakers canno be tuned, so they must go out of tune. Is that what you want to drop five figures on?
MDF and plywood are far more dimensionally stable than wood. So while you can ding those manufacturers for "cheapness," their speakers are far more consistent.
Second, you really don't want cabinet resonances in your music. They color and veil. Is that really what you want? Most of us listen to open headphones - the entire point of that is to get away from unwanted resonances. Further, my favorite speakers don't have cabinets at all. The Quad ESL-63s, for example, just have a frame. The Orions I'm working on have dynamic drivers, but are open baffle and free of cabinet colorations. To my ears, open baffle and dipole speakers sound much, much more "real" than cabinet speakers.
Finally, running a ribbon as a monopole is a mistake. The entire point of a ribbon, in my opinion, is the delicious dipole effect they have. I've lived with dipole ribbons for about seven years - there is just something fundamentally "right" about them.
So I'd never buy these. If you want pretty furniture to ooh and aah over the craftsmanship and brag to your friends about the price and how they were handmade in Switzerland, then they're for you. If you want the best music reproduction possible, get some Quads, Magnepans, Apogees, Matrin Logans, or any one of many fantastic DIY projects.