Well l tried the Tannoy 6P Monitor ( Dual Concentric driver and super tweeter 91db @ 6ohmns) in my 11f x 12f room with my Sensation M901 JT Dynamic PSU and found the pairing to sound quite nice- but very, very musical indeed, a very effortless sound indeed which went pretty loud, a bit grey sounding compared to my Harbeth Compact 7ES2 l normally use in the same room but never the less a very entertaining sound , would love to hear my Sensation with Tannoy Turnberry's l reckon that could be pretty special!
