Sorry, I have no experience with that driver. It does look like it was made by Eminence, probably an OEM made to customer specs. I imagine it was made as a car audio woofer, which is where the LAB12 has its roots.As for information about push-pull drive, see the post called "Push-pull verses shorting rings". It has links to several posts, some containing links to outside information sources and test data as well.