I've tried Naim with Tannoy. I own the Turnberry HE's and Glenair's. Naim delivers a very punchy sound with great bass and drive. However, the treble is noticeably rolled-off to my ears. The Naim products I've used are Naim 200/202 with Hicap, Naim XS with Teddy cap and CD5X with Hicap. A better British integrated is the Linn Majik-I with Dynamik power supply. The Linn-Tannoy sound is very natural with great tone.
Jim