You're certain about that? They just look like so many other drivers, Arc and NVX subs with the same baskets come to mind. I assumed those were Chinese but admittedly haven't payed close attention.
Still, hard to go wrong with Image Dynamics. Many good experiences with the older stuff.
If you're enjoying the Q as much as you are, you might consider the NVX XQW drivers made by SBA. I recently installed a pair of the 12" for a family member and they were phenomenal. Much better build quality than the Q, very clean looking. Cast baskets, shorting rings in the motor... lots of clean stroke.
No idea why they are marketing them as shallow drivers. FWIW -->
https://www.ebay.com/itm/2-NVX-XQW124-400W-12-X-Series-Shallow-Mount-Dual-4-Ohm-Subwoofers/362323914613?hash=item545c302f75:g:ag4AAOSwruVa~1gq