The DC10a's are a really nice, much fuller sounding than how I remember the Kensington SE's sounding. I have yet to hear the Kensington GR's so not sure how they compare.
They have that typical Tannoy naturalness and musicality yet still give you goose bumps with their fantastic bold lively dynamic midrange. No surprises here but the bass, I was not expecting such great bass out of 10" two way, deep and forceful.
They do not have effortless dynamics as the 15"ers, the low distortion and neutrality of say a Magico, The SPL available from a Bryston Model T. No speaker is perfect, but these come close as they are reasonably priced, not too big, good looking, musical, powerful and dynamic, great staging, etc...
I really like them