I also have Eames lounge chairs in my room- they suffer two drawbacks, sonically. First, they have a headrest, so that's got to affect what you hear (or don't hear). Also, they are a little low- something that you may be able to account for in speaker set-up. I have not tested the sonic merits of rosewood vs. other materials :-), but I will note that since you can get a substantial discount from an authorized Herman Miller dealer, you are not going to pay much more for the real thing than for a good knock-off. (There are admittedly some cheap knock-offs, but what's the point?). Also, note that DWR, which until recently sold a good quality knock-off of the Barcelona Chair (aka the Pavilion Chair) is now only selling the real deal from Knoll. (FWIW, there is a resale market for the real ones, and not a meaningful one on the copies).