I do believe an upward direction in the Tannoy line would prove to be satisfying, but I think you may have to go farther up than the Kinsingtons to match the quality of your other gear.
I have Tannoys, but they are custom built, using HPD 315 drivers (12" Dual Concentric), with new cones upgraded to the current Prestige line with "Hard Edge" surrounds.
The crossovers are custom designed and built, using top quality parts (Mundorf S-I-O caps, Alpha Core foil inductors, and Dueland resistors).
The cabinets are 150 liter, nearly two inches thick, and weigh about two hundred pounds each.
I use them in a large room (16' X 39'), with a cathedral ceiling.
The point of all this, that in using very high quality ingredients, even a thirty five year old Tannoy can be made to sound state-of-the-art, even in this day and age.
I encourage you to listen to models higher up in the Prestige line. You didn't mentiion how large a speaker will fit in your listening room, or your budget, but considering your other equipment, perhaps even the Kingdom Royals are not out of the question.
Happy hunting, and good luck, regards,
Dan