Any thoughts on this comparison? It seems like these two are pretty similar models. The 7500 tests better, and Outlaw has been around longer than Emotiva so the warranty carries more weight. On the other hand, the 7500 has ground loop issues? The MPS-1 is particularly compelling for the next two days since it is an additional 10% off and free shipping. It is like buying four channels at the Outlaw per channel price and getting three more channels for free.