I just auditioned the CS2.7's, driven by VTL electronics, and quite frankly came away rather disappointed. They do sound quite neutral and on some recordings sound very good indeed. But on complex musical passages the sound became "congested" and lost transparency, as though there was quite a bit of distortion. My gut feeling is the speakers needed more break-in time, although the dealer thought they were mostly broken in.
I also auditioned the CS3.7's in the same room with the same electronics, and they had a very similar tonal quality (not surprising), but sounded more open and transparent, had better sound staging, and never got congested like the 2.7's.
I also auditioned the CS3.7's in the same room with the same electronics, and they had a very similar tonal quality (not surprising), but sounded more open and transparent, had better sound staging, and never got congested like the 2.7's.