I cannot find any objective measurements on the Tannoy's. Do you have a link?
They don't seem to be reviewed much, unfortunately. Here are sound power measurements I found from HTMag for a Tannoy Sensys system, with the top line is a tower, the middle one shows the glaring flaws one expects from a horizontal center channel, and the bottom line is a bookshelf.
HTMag said:
***The DC2's listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures +0.77/–1.59 decibels from 200 hertz to 10 kilohertz.***The DC1's listening-window response measures +0.88/–1.26 dB
They also measured the Arena eggs, of which I own two pair, but found in a blind test I didn't like as much as the KEF HTS3005SE (the best-sounding small "designer" speaker out for my tastes, and subsequently purchased), John Krutke's Bargain Mini design, or a Behringer B2031P.
HTMag said:
***The satellite 's listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures +2.23/–2.83 decibels from 200 hertz to 10 kilohertz.***
Also, I'd love to see objective measurements of your speakers.
Here is someone else's unsmoothed on-axis in-room measurement for a Tannoy System 12 DMT II, my reference LCR main, with the caveat that an in-room measurement will not be as clean as a quasi-anechoic one.
Note that they have an "Audyssey notch" built in, which is perhaps one reason I liked Audyssey better on them than I did on the KEF eggs.
If you overtoe them such that all three cross ahead of and in front of the listening position, as I've found optimal for the types of speakers I generally like, then the overall response profile smooths out on top to a more gradual shelf. (That is to say, the listening-axis response doesn't come back up in the upper mids.)
When the 8x8 miniDSP-in-a-box comes out and I start playing with measurements of them for active crossover design, I'll probably set up a small website/blog to help other people with these speakers who may be considering going active.
I will for sure check out the KEF's, thanks for the recommendation! Do they have an active monitor version of the new Uni-Q? I couldn't find one on their website.
Not to my knowledge.
Here's Dennis Murphy's measurements of some $35,000 Tannoys:
MurphyBlaster Productions
That said I liked the 5 minutes I spent with some $400/pr Tannoys
Seriously, I can't believe nobody has yet noticed the most obvious thing visible in Dr. Murphy's nearfield measurement:
the Westminster Royals he measured are miswired! (No, that does not speak well to Tannoy's quality control.)
Just look at that deep null, right where one would expect the crossover to be, indicating one of the drivers is wired in the wrong polarity!
That said, I didn't like the Westminster Royals, or Churchills, when I heard them. Or any 15" Dual Concentric I've ever heard. (Never heard the Glenair 15, though I've been told it was the best of 'em...by a Tannoy dealer who had previously exposed me to the D700's, D500s, and Saturn S10's, all of which I loved; the Glenair 10, which I thought good-not-great; and the TD12, Westminster Royal, and Churchill, none of which were my thing.) Or any of the TD line with their paper coned Duals and that infernal power-response-destroying supertweeter. (Didn't like the supertweet'ed KEF References at all, either. So glad both KEF and Tannoy left that silliness behind. The KEFs were not as badly affected by the supertweet as the Tannoys, though.)
I've found the 15's to be markedly more colored in the lower mids than the 10's and 12's. And the poly-cone ones just seem smoother than the paper cone ones. (I also have a set - soon to be a trio - of CPA-12s, which have a deeper paper cone and narrower pattern. I don't like them as much. However, they'll be great mains for my sister's forthcoming basement theater, so when I found a stray one available I jumped on it.) While I didn't take measurements, I compared a set of 15 DMT II's I was considering purchasing directly against my 12 DMT II's...and happily didn't buy the 15's.
There's IMO a reason their flagship Kingdom speaker used a 12" Dual Concentric.