The KEF Reference 1 eliminates the muddy bass of the LS50. All two-ways (using a tweeter) have some type of low frequency compromise. If I remember correctly, it also has port hose thing that helps change the "damping" of the bass. If you like the LS50 that much, I can only imagine you would really dig the R1. I didn't care for the Tektons I heard, either. People are different.
Smallish room speakers
I have a small room (12 by 14feet) dedicated to 2 or 2.1 channel sound. I went through a few vintage configs but finally went with an NAD M22 amp with a McIntosh vintage preamp using some vintage speakers. I was looking to upgrade speakers and I visited a great shop in Bensalem PA to audition some vintage speakers on sale and owner showed me KEF LS50s. I bought them on the spot (had to wait a week for them to be ordered). I added a compact sub SVS. I really enjoyed this setup but after reading about Tekton I contacted company and spoke with owner Eric - was told impact monitors would be a significant upgrade over what I was using. I bought them and I would disagree. There is something quite special about the LS50s. In my home theater I have Pioneer S 2EX monitors (6K$). I swapped them in for my KEFs and was disappointed and they went back into my HT. Tektons pretty much same. I decided to simplify things and bought the NAD M33 integrated with room correction EQ. Brought Tektons somewhat to life. This was very recent and I haven’t tried with the KEFs. I plan on auditioning the KEF Reference 1 which I’m told would be significant upgrade to my LS50s and I would imagine to the Tekton Compact Monitors. For some reason the KEFs put a smile on my face and I don’t get that with the Tektons.