Wooch, my plane's about to land so I have to make this quick, but real quickly I've noticed the stats in the link you provide seem to refer to much older Titanic MKII driver...the xmax of the new 12" MK III is a whopping 1.87 cm (or 2-way 3.74 cm), much longer than the Shiva driver, and PE claims a max SPL of over 110 dB's vs the Rava's 105 dB's.
The Titanic moves more air, has lower response, more power, and higher SPL...Parametric EQ (is it one channel?) and it comes in ugly black.
What more could you want?
More tomorrow hopefully.