After all the helpful hints. I am very close to having my full HT setup. I bought a SPL meter from Radio Shack and started tuning the system. I have a few questions below:
1. Why is it important to calibrate all speakers to 75 dB for each speaker? Is that what the sound engineers intended the listener to hear?
2. Is it good to calibrate the Sub +5-+10 dB above the 75 reference?
3. Some say that the center speaker should be +1/+2 dB above the other speakers. What is your feeling on that?
4. While tuning, I can either turn my master volume to a level = 75 dB (master volume at 60) OR I can turn my master volume to a level = 70 dB (master volume at 50) and then tune each speaker channel so the SPL reads 75 dB. Which is recommended?
Personally I feel at 75 dB, it's loud, but I assume I can turn down the "master volume" to a level I like to hear. As long as I tuned the individual channels to hit 75 dB as a reference point?