Hey guys, I just got my entire new home theater setup last week. I went with E30 and Ec35 for the front, E20 for the sides and E10 for the rears powered by an Onkyo 503 receiver, Oppo dvd player and Z3 projector. I was running out of money so I went with the JBL 250 sub, and guess what, I love it! Sure, its not as good as my old SVs but for now, its perfect. Anyway, my delima now is I need to mount the speakers on the wall. Is it safe to drill / mount speaker mounts to the back of the speaker? I guess I am worried about drilling into the crossover and damaging something. Thanks.