I am shipping a couple JBL 122A speakers to a friend and not sure what is the proper way to pack them. The foam surround stick up higher than the frame. I normally bolt 2 speakers together for ease of shipping and protect the cones at the same time; though with these, i am not sure how to pack them without ruining the surround. I thought about mount each of them on a piece of plywood but can't do that neither due to the higher up foam surround. Any advise is greatly appreciated. Thank you in advance.