While I have little experience with Dyns, but a fair amount of time with KEF and KEF have a very analytical sound. I never found them to have a great deal of warmth. My experience with Dyn is only at my local dealer, so maybe 2-3 hours and I found them to be a more natural sound. Let me be clear, I in no way am bashing KEF, but after a couple of years, I traded them in for Sonus Farbers.
All the best.