Thorsten's system was very interesting too! It has open baffle speakers made from Perspex with a full range (8ââ'¬Â was it?) driver and a super tweeter. It also had a sub.
I think it had a very open and fast sound, with a lot of the detail retrieval and dynamics of the MEG's, but a softer top end. For open baffle speakers, they had surprising kick and low end extension, even without the sub. Actually, IMO the sub added too much bass and I preferred it without but it did help to fill in the very low notes. There was also a room resonance around 150Hz I think. This was the only noticeable one though. Again, like the IB2's I think the system was a little thin sounding but Thorsten said this was largely down to the amps he was using, which I can believe.
I was also impressed with his DVD player ding CD duties. It was notably better than the DEQ2496 when playing from the media PC. I might have to do those mods (or get someone to do them) for my DEQ2496 to try and bring it up to scratch!
The soundstage was large, but I found it odd having the musicians appear in solid objects such as the TV because the speakers were back from other things!
I will also proudly say that none of the systems I heard at KMR or Thorsten's have as accurate imaging as mine 
For classical or acoustic music I think I would love Thorstens system. But for more heavy guitar driven stuff, I'd find it a bit too thin.
The fieldcoil technology is very interesting as well! More speakers should have this IMO.