And to avoid any confusion, that crossover is very close. but not identical because it has a 7" woofer (the ones I posted were for 6").
@Trell I appreciate your making the point that the crossover stayed the same between the 830.2 and the later 836 models. I have speculated via PM with
@snakeeyes that the Titanium woofer is likely a cosmetic rather than functional difference (it does look cool). The fact that they continued to use the same crossover with the new woofers seems to reinforce that (but is not definitive).
Aluminum is a great woofer material and it is difficult to understand what the translation from German to English means when they say:
titanium cone membranes are used in the midrange and woofer area
but I do wonder if "membranes" might mean "anodized".
As a tweeter material, aluminum can have some serious breakup issues in the audible range and the ceramic coating makes a substantial performance difference by pushing that break-up mode into frequencies well above 20kHz (as well as stiffening the dome to make it more pistonic)!