I don't own them, and I haven't heard them. But I was looking for info on the 12L2, and came across this article:
http://www.georgeflanagin.com/12L.php
It's a review of the 12L Active. It does seem as though the Actives are based on the older L design, not the L2 revision.
Also, there's this article:
http://audioenz.co.nz/2007/systems_4k.shtml
Hope this is some help. I just got these from typing "quad 12L active" into Google, so perhaps you've already seen them :)