That's a very interesting article although interestingly it doesn't mention some of the drawbacks of the Tulip Waveguide system such as introducing slightly raised distortion between 1KHz and 2KHz and the importance of tuning crossovers to various enclosure designs. I must admit I prefer the pepper-pot design of the earlier models and the more expensive prestige DCs but like the Turnberry for the excellent cabinet design, room friendly size and build.

Still deciding between the Turnberry or the Mansfield and it's 6 of one and half a dozen of the other at the minute...but I think that the vintage Tannoys just may have it!