Thanks everyone for your responses. Williewonka, I emailed proac and Stewart replied and advised not to tilt, and to get a more ideal seat. Will do. On a side note, I will say that these have truly started to sound magical. FINALLY. I was worried about them to be quite honest, and thought I had made a mistake with them. They sound so much better than they did upon first hooking hem up. For the last 3 days, they've been playing Mahler, so that probably loosened them up right there. It is true, they need 500 hours before you can judge them. They almost sounded defective at first! What a difference. These really do cast a spell on the listener. I'm simply amazed. With 550 watts Mahler has never sounded so real. The dynamics and just shear prowess of these speakers is astonishing.
Proac Rake angle?
With the D48r, and my current listening chair, with the speakers perfectly level, my ear is at the top of the surround of the top woofer, instead of tweeter level. I'm assuming that this is not allowing me to get the best tone and image out of these speakers. I have some outriggers on the way that will allow me to adjust the rake angle more easily. But I'm not sure if tilting this speaker back to get the tweeter to fire my ear will actually be completely beneficial. Would this skew the crossover alignment? Would I be better off trying to find a chair to get lower? Any experience?