The British speaker sound: Tannoy, Harbeth, etc...

Hi, I have a pair of Tannoy D500s that I purchased as demos some time ago. I'm going to have them looked at because i think one of the tweeters may be blown or loose. But more to the point, I love the sound of them and I've been doing some reading about the British monitor sound. I also have a pair of Spendor S3/5s in my home office. They sound different, but I really enjoy them too. I've been reading about Harbeth's too. I've also studied the Tannoy prestige line. I don't have access to listening to the Harbeths or Tannoy Prestige line for listening. While my D500s are in the shop I may demo some other British monitor sounding speakers at home. I've heard other speaker lines at audio shops, but I still keep coming back to the British sound. It's not so hi-fi, just very natural sounding. I guess I would surmise that I love good midrange. I don't like bright speakers.

What are your impressions of the various British speaker lines similar to the Tannoy sound? How would you characterize them and what recommendations would you have? I like the Tannoys partly because they are good at low volume and because they sound decent off-axis, both important to me. They have to live in my living room where can I appreciate them too (aesthetics).

If it helps, my associated equipment is Mcintosh tube amp and preamp. EMC-1 and Sony SACD CD players. Audience Au24 interconects and speaker cables. I like bluegrass, classical, jazz, ambient/meditative electronica, some rock. My favorite instruments are acoustic guitar, cello and piano.

I appreciate any and all opinions, recommednations and discussion!
What is called the "BBC dip". For more info, check this post from the Asylum; look at the link and the rest of the thread. Some people say that most British speakers are traditionally built like this, esp. Harbeth.
I wasn't going to respond to this post, because I have no idea what Tannoy and Harbeth have in common. My guess is nothing. But regarding the BBC dip, it is only about 3 db, in the presence region - so the only effect is to move things back just a little, more depth in other words, and only one or two current Harbeth models incorporate this kind of voicing. The Harbeth Monitor series and the little P3ES mini-monitors do not. The HL Compact 7 has it. The SHL5 may. But so do some B&W speakers and who knows how many others. That is not what makes a Harbeth speaker sound like a Harbeth. For all but the mini-monitors, the proprietary material of which the mid-woofer is made, the lossy cabinet construction, and the ear of the designer are the distinguishing factors.
Sorry - the title of my post was "maybe" but it didn't show like they do on Asylum threads. The Linkwitz site is still interesting, though.
BTW, why the field for "subject", if it won't appear above the post?
I listened to Spendor,Sonus Faber,B&W, to name a few...and went with the Quad 12L...they are not as colored as Spendors...and are far more "lively" in nature...not to mention superior in bass....however are more finicky with electronics and source...and are far more unforgiving than SPendors...some dont like this level of realism...others any rate...I do like Spendor 3/5s...and they would better with poor recordings...however...the soundstage,transparency,and speed of the QUads is what really sold me...very static-like...which coming from Quad should not be surprising...great speakers...
I've owned several British speakers and recently come to love the small Spendors and the ATC SCM 7s and SCM 12s as most open, detailed and simply musical.
I doubt that "British sound" means much of anything specific any more, at least as to larger floor-standing models. B & W's top models long since departed from the classic British sound; KEF seems to be moving in the same direction; and from what I've heard the new "super-tweeter" Tannoys certainly don't sound anything like their famous older models. About three years ago I sold my B & W 808's (mid-80's design) to a friend, and every time I visit him I am reminded how warm and rich they sounded, nothing like the present B & W sound.
The b&w nautilus line of speakers have one thing in common with the old "British Sound" and that is the presence region suckout...I traded my 801's in after 6months!! I found it very annoying on drums, vocals and lower mid -bass instruments like the cello. Tonality was great, but aliveness and palpability was absent...the thrill of music was missing..dynamic contrasts were non-existen unless you cranked them till your ears bled!!!