Originally Posted by Eternal Velocity
I'm really hoping to get my SEOS-18/BA-750/TD15M design completed and passive by the end of August. Building big speakers is definitely a lot more complicated than building a little bookshelf, in many aspects. I never thought box construction would be such a holdback but that's what I get for using 1" MDF. In all the SEOS-24 / BMS coax craze, these drivers probably got lost, but they look like one deadly 1" tweeter if ever there was one that wasn't a $2000 TAD 2002.
Of course I still would love to see a Boron Carbide diaphragm option to make the BAs into "The Ultimate DIY Drivers"
I'm doing a SEOS18/BA750/TD15M build too and have all the parts in hand.
I plan to build a separate box for the SEOS18 that will sit on top of the TD15M box. I haven't decided whether to go sealed or vented for the TD15M. What do you plan to do, sealed or vented? I plan to actively cross using the minidsp.
I'm going to use constrained layer damping; 9/16" 11 ply void free/ 1/16" Sikaflex 291/ 11 layer ply. I hope to achieve a well damped box without resorting to heavy MDF. Sealed certainly would be the easier route requiring only ~ 3cu. ft. box instead of ~6.0 cu ft . OTOH it would be nice to use the TD15M down to 35hz to supplement my subs and help with a distributed bass scenario.
I too would be interested in a boron carbide diaphragm option for the Big AZZ.
Maybe we need a separate thread for SEOS 18 builds?Edited by rajacat - 7/23/13 at 5:26pm