Yeah this is a common problem, but at least you have a multichannel amp with speakers by the same manufacture.
1)Buy the AVIA DVD, and crank the volume up to the level you like movies at, and run their sound tests with your sound pressure not the processors... since this is at the same level it will be accurate no matter what the difference sensitivies of the speakers are.
1.5)Check the speaker size it might be set to small and crossed over at 100hz, when it can handle large with the bass being crossed over at 100hz to the SUB. This will cripple your center channel output, but becareful with your first movie, listen at a lower volume to make sure you don't bottom out the center or damage your system.
2)Use the Phase check Avia Provides, you might have your center channel out of phase (wired or you processor might invert phase for you on your left/right speakers) this would cause the sucking out of the vocals big time!
3)Adjust the angle of your center channel if it is just sitting on the Big screen or sitting on a shelf below a projection, then the highs are being cut off... use a couple of rubber door stops and slide it from behind until the vocals snap into focus! This is really critical or buy a Sound Anchors Center Channel stand that allows you to adjust the angle/height of the center channel (I have this and it rocks!) If it is on top of the big screen move it forward to the edge of the TV to minimize the reflections and allow for the correct radiating pattern from the drivers(would you push your speakers to the side wall and expect them to image, same idea).
4)Lastly try to make sure you have the same interconnects and speaker cable on the center as the left and rights.
5)Remove the speaker grill on the center
1)Buy the AVIA DVD, and crank the volume up to the level you like movies at, and run their sound tests with your sound pressure not the processors... since this is at the same level it will be accurate no matter what the difference sensitivies of the speakers are.
1.5)Check the speaker size it might be set to small and crossed over at 100hz, when it can handle large with the bass being crossed over at 100hz to the SUB. This will cripple your center channel output, but becareful with your first movie, listen at a lower volume to make sure you don't bottom out the center or damage your system.
2)Use the Phase check Avia Provides, you might have your center channel out of phase (wired or you processor might invert phase for you on your left/right speakers) this would cause the sucking out of the vocals big time!
3)Adjust the angle of your center channel if it is just sitting on the Big screen or sitting on a shelf below a projection, then the highs are being cut off... use a couple of rubber door stops and slide it from behind until the vocals snap into focus! This is really critical or buy a Sound Anchors Center Channel stand that allows you to adjust the angle/height of the center channel (I have this and it rocks!) If it is on top of the big screen move it forward to the edge of the TV to minimize the reflections and allow for the correct radiating pattern from the drivers(would you push your speakers to the side wall and expect them to image, same idea).
4)Lastly try to make sure you have the same interconnects and speaker cable on the center as the left and rights.
5)Remove the speaker grill on the center