They look identicle to some E120-4's I bought for $200 ea.
One thing... when they arrive, I would immediatly check that the speakers move in/out freely.
I had one arrive frozen in place (wouldn't move in/out at all).
I read where these mags can get jarred out of alignment (presumably in shipping), causing an irreparable lock-up.
Luckily, the guy had 8 of them, and had me ship it back and replaced with another (on his dime, and with no bad vibe at all).
Also, on the back side of the styrofoam (underneath the bottom styrofoam), there should be a small bag with mounting screws.
Mine also both came with a rubber gasket, which I have no idea what that is for... Anyone?