Here you go Tannoy. Check out this pic.

http://www.printroom.com/_vti_bin/ViewImage.dll?userid=junglecats&album_id=47674&image_id=46&courtesy=1

30" sub-bass driver (YES 30 INCHES!) flat to 16hz.
Rembember the opening scene of the movie BACK TO THE FURTURE? LOL.