Do you know what is the impedance of the Vegas?. I own a pair of 280SE and in the specs they said that the impedance was 6 Ohms. They weren't telling the truth because impedance sometimes drops down to 2 Ohm and my receiver was shutting down. So, check first the Impedance of your Vegas.
If you like loud parties, maybe it's better to buy a power amp like a QSC, Crown or something like that, i think you will be happier.
O.K. I've seen the site and the tech papers say "8 Ohm compatible". I don't know what this means, but, i think any receiver would handle them fine. I guess the "8 Ohm compatible" statement refers to a non-stable Impedance but this thing doesn't drop down below 4 Ohms, i think.