When I heard the 600 I also hear the classe amps. It was with B&W speakers though, not focal. Plus, it was in a big room with the bigger amps. But they did sound good. It will probably be a different sound then the Sim. I think though even with the Classe being 100 watts it won't be a problem as far as output goes. Yes the Focal's dip in impedence but the sensitivity is not that bad. The Classe probably outputs a bit more then 100 watts in the real world. Most amps do. My Brystons do and most other amps like Krell, and parasound do as well. The question is will it be better. That I can't say. I know from your posts that you like the sound. It will sound different for sure. Based on what you say about your listening habits I don't think the 100 watts would be an issue. The issue is if it is a good match.
I don't know how sneaky you want to be but there is a store in Delaware named Overture Audio.
http://www.overtureaudiohometheater.com/
They sell Classe and Focal. You could always ask them. Again, it may be sneaky if you plan on buying from some place else but it may be worth contacting them with a general type feeler question.
I don't know how sneaky you want to be but there is a store in Delaware named Overture Audio.
http://www.overtureaudiohometheater.com/
They sell Classe and Focal. You could always ask them. Again, it may be sneaky if you plan on buying from some place else but it may be worth contacting them with a general type feeler question.