usually the "protective shield" does more than merely protect the screen. it can reduce reflections thus improving contrast, increase sharpness, etc. depends on the shield. merely taking it off is a bad idea... perhaps the shield is vibrating in unison with the screen...

my one opinion would be to pull the subwoofers farther in front of the screen, that way the sound waves that radiate will not directly hit the shield so much. it may not take moving them that much forward... plus this would not impact the setup of your system too much, because you the placement would be practically the same...

i didnt say that before, because i thought you could think of that... damn assumptions.

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