I built a pair of 150 liter bass-reflex enclosures for my 12" HPD's. 1 7/8" net of two layers of MDF, which adds up to 192lbs. ea; sans drivers and crossovers. I've seen better looking custom cabinets built, but I think you'd be hard pressed to find a better sounding pair.
Look for my Virtual System under "Done For Now", named "The Summit" (referring to my own personal summit, not as in ("best in the world").
When I was looking for a design for mine, there seemed to be a real dearth of helpful information. I found the most info on Hank Hilberdink's Tannoy website, if you join, you can post questions to members worldwide, and see what others have done. There is a Yahoo forum where you can post your questions. Also, my build photos and plans are posted there, under "Custom Heavyweights For HPD 315's".
Best of luck, regards,
Dan
Look for my Virtual System under "Done For Now", named "The Summit" (referring to my own personal summit, not as in ("best in the world").
When I was looking for a design for mine, there seemed to be a real dearth of helpful information. I found the most info on Hank Hilberdink's Tannoy website, if you join, you can post questions to members worldwide, and see what others have done. There is a Yahoo forum where you can post your questions. Also, my build photos and plans are posted there, under "Custom Heavyweights For HPD 315's".
Best of luck, regards,
Dan