I have personally met Richard Shahinian (back in the ninety's) and spent some time at his workshop in N.Y. So, the bad news first, he hand builds the 8" drivers in house from various custom and pre-ordered parts. Same goes for the 10" passive radiators, which are specifically weighted to the 8" drivers. I can tell you the man knows what he is doing as he demonstrated what 5 hertz really does!!! From 8" drivers!!!! The above comment to call Richard or Vasken is probably you're only option, but hey, that's the price you pay for near perfection.
Andrew
Synesthesia Studios
Andrew
Synesthesia Studios