@ dan, you're a braver man than me and no doubt more knowledgeable in these matters.
Still, I hope you don't mind a few suggestions, that might be worth bearing in mind. The original Tannoy's all used chipboard as cabinet material, and to a large extent it works really well. With MDF I believe it is possible to get good results, but more care may be needed to keep those nasty resonances away from the midrange.
Secondly, as is being appreciated more and more, the driver/cabinet coupling is all important, so it's well worth experimenting with the tightness of the driver bolts. I strongly believe that no more than finger tightness is required (for any large heavy Tannoy DC drivers).
So it might be worth playing around with that too. Best of luck.
Still, I hope you don't mind a few suggestions, that might be worth bearing in mind. The original Tannoy's all used chipboard as cabinet material, and to a large extent it works really well. With MDF I believe it is possible to get good results, but more care may be needed to keep those nasty resonances away from the midrange.
Secondly, as is being appreciated more and more, the driver/cabinet coupling is all important, so it's well worth experimenting with the tightness of the driver bolts. I strongly believe that no more than finger tightness is required (for any large heavy Tannoy DC drivers).
So it might be worth playing around with that too. Best of luck.