I'm also a member of avsforums, and in the Axiom thread an owner posted some pics of his new QS4s which have a different tweeter than what's currently shown on the Axiom website.

Here's the post:
http://www.avsforum.com/t/1464107/new-official-axiom-audio-speaker-owners-thread/270#post_24328259

Curious if Axiomites can provide some info. Is this a new design over the V3? Is this specific to the QS Series or is there a refresh happening across the entire line? Inquiring minds want to know...