Well, I tried out scenes from Pulse, War of the Worlds, and The Incredibles. There's certainly more heft to the low end now, and it's not like the EP600 was a slouch. I haven't tried just one EP800 yet.

Oh, I was curious. I have an email in to JC, too. I originally had a hum with the single EP600, which I remedied by using a balanced XLR cable. Again, with a single EP800, there's no hum, but upon hooking the second sub up to the first, they both hum. It's not loud enough to impact movie watching, but I'd still rather not have it. I don't know enough to understand why hooking up a second sub would re-introduce the hum. Can someone fill me in?