Speaker Enclosures

Thanks all for your input. I think I will scrap the idea of using granite for the enclosures. The properties that make granite the ideal choice for speaker enclosures also make it the most difficult to mill and fabricate inexpensively. I have some theil drivers and will try to duplicate a set of cs 3.6's out of MDF.

Gents, once again, great responses! My first love is wookworking, then audio. Now that the kids are gone, both woodworking and audio keep me busy in my spare time. I initially thought of copying the Theil 3.6's because I have some Theil drivers that I am not using from an old pair of 3.5's, but on second thought I will take your advice and purchase a crossover and driver kit and build the enclosure. You guys have given me sound advice and I am afraid I will have to tap your collective minds one more time. I have heard that you can purchase drivers and crossovers as a kit with plans for the enclosure. Does anyone have any recommendations? Thank you all in advance.

Wow! You guys are unbelieveable! I did not expect to get so much good info, so fast. I will be checking out the site that you all graciously pointed out. I have two systems at home. I have an old Threslold Stasis amp in one and an Aleph 5 in the other. The Threshold drives a pair of Theil 3.5's and the Aleph drives an old pair of Advents left over from my GAS system purchased in the late 70's. Uh-Oh, my age is showing. The Advents are not terribly sensitive (89db) and are in real need of replacement so the practical decision is to purchase a Kit and build the enclosures. I have some book matched birds-eye maple veineer that I was saving for a rainy day so as soon a I select the kit it's off to the lumber yard. I am really excited to get started and wish to thank each and every one of you for pointing me in the right direction. PS: I have been out of engineering school for 30 years. Anyone recommend a good filter theory book for me to brush up with. These days, I can only count up to one if ya catch my drift :-) Thanks again Gents!