Tannoy, of course :)
I’ve heard a lot of Tannoy speakers, including Turnberry SE at a friend’s. I’ve owned a lot, including Kensington SE, but have not heard the GR series Kensington nor Turnberry. Of note, the Kensington model is where they start using the special pepperpot / alnico divers - almost 10x more expensive if you look at replacement driver costs! These models have a more vibrant, rich midrange and provide more "jump factor". In the right system they "breathe" better and music just flows effortlessly. The Kensington midrange in particular, is quite spectacular. The 10" alnico driver just NAILS the midrange, at the expense of some bass power.
The downside is that the alnico/pepperpot’s treble isn’t the smoothest on record - you’ll need *some* care in gear matching to not push it over your comfort zone. If you pile on bright & harsh components (I mean, why would you though) you’re gonna have a bad time! Quite frankly the cheaper ferrite/tulip drivers (a more recent design) may be easier to tame up top.
Interestingly, Tannoy once did a VERY limited run of Turnberry LE with the Kensington alnico driver! They wouldn’t have done that if it wasn’t the better overall musical driver.