Kanch, I've only owned two sets of Tannoys, both of them 12", first an MG set, and then what I'm using now, the HPD 315. They are in cabinets that are 150 liter bass-reflex.
The cabinets are made from 3/4" MDF laminated to 1 1/8" outer MDF. They each weigh 192lbs. without driver and crossovers. They sound perfect to my ears. I recommend you look up Hans Hilberink's Tannoy website, just Google it.
Those are some very fine drivers, if they are matched with the right cabinet, and the right room, (and crossovers), they will sound fantastic.
I use my 12" HPDs in a very large room, and they don't disappoint. You can take a look at my speakers on Virtual Systems, under "Done For Now", named "The Summit".
Best of luck. You will be richly rewarded when they are done.
Regards,
Dan