Thank you er824. batpig website indeed is very helpful. However, the step below has made me even more confused. Batpig says that CHANNEL LEVEL ADJUSTMENT is almost mandatory after running Audyssey, and one needs to do it using SPL meter. My questions is why do we need to do this adjustment for speaker balancing when Audyssey should have already taken care of it? Or is it still needed? If yes then why (what is the point of Audyssey calibration)? Any SPL meter that you guys recommend and if you could share a post on how to use it for speaker balancing. Below is the excerpt from Batpig that I am refering to:
"After running Audyssey, next is set your speaker distances using the DISTANCE menu. Whip out the tape measure, pick a central primary listening spot, and measure the distance to all of your speakers. This is an important step, and is less about physical distance than it is about time alignment, i.e. making sure all the sound gets to your listening spot at the correct time.
Next, you must balance your speaker output using the CHANNEL LEVEL menu. Select your preference for the test tones, "Auto" (the speaker test tone will cycle continuously through all of your speakers) or "Manual" (you control which speaker is outputting the test tone). Then, scroll down to "Start" and hit the LEFT arrow to begin.
If you have selected "Manual", you can cycle the tones among the speakers by pressing UP or DOWN on the directional pad. To adjust the volume of a particular speaker, press LEFT or RIGHT.
HELPFUL HINT: While you can get decent results "by ear", it is much more accurate to do this using a Sound Pressure Level (SPL) meter, which you can buy at Radio Shack. It is very important for the surround mix that your speaker levels be balanced correctly!"
Thank you all for your help!