I have never done this, but the Full Metal Bracket (FMB) instructions on the Axiom site talk about driving screws into the back of the speaker and provide pictures showing where to attach. There is a pic for the VP150 which shows the screws going in right beside the binding post block.

To find the instructions, go to "Our Products" on the Axiom home page then "Bracket" then "instructions" then "VP150"...

I assume the VP150 in the picture is right side up and you will want to do the same (so it angles down a bit) but it wouldn't hurt to check with Axiom to be 100% sure about that. I would hate to put a #8 screw through the crossover.


M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8