Ok. So far so good... I also picked up the radio shack spl meter, set the range to 70db and calibrated the speakers to sit at '0' on the meter (with the receiver test tones).

Now, this receiver has the ability to set crossover frequencies (i believe that's what they are) for the front, center, and rears. The values are 60hz, 90hz, 120hz, 150hz, and 180hz. What does this mean and what would be the best values to choose?

Thanks again!