In the past, a flybar (also known as an array frame adapter) was offered to link and fly 2x DV12's together in an inverted array. This flybar was similar to the stack bracket, in that two DV12s would be linked in an inverted configuration, where the top box was rotated 180 degrees so the tweeters lined up, however it allowed the stack of 2x DV12s to be flown via shackles and spanset.
This item has since been discontinued because 2x Ffown DV12s have a very narrow pattern vertical, making it suboptimal for installs and mobile production. Instead, we recommend the MFLA and its array frame or AT212/AT312 flown from its flypoints for these applications.

See Also:
- DV12 Stack Bracket Information: https://help.bassboss.com/support/solutions/articles/158000464877