Quote Originally Posted by A7fan View Post
Nice, I picked up a pair this spring. Still trying to come up with a stable way to mount the horns as they didn't come with factory mounts. Also am using the 288 drivers with adapter plates. Much smaller driver than yours...
I have the mounting brackets, but never bolted them down to anything. Unbolted, they are not very usefull. Easy enough to bolt to a makeshift 'sled' (board) of course.
If an option... I vote for the hanging option as well, since you have the plates. Should be 'easy'. You might be able to get away with 2 chains, one to each side of a plate to stabilize the X, then can add mass to the front lip of the horns (if holes present) to balance the Y.

Of course, acknowledging that not everyone likes the industrial 'giant horns hanging from chains' look. :-)