Originally Posted by Pete_Hsu
I haven't tried using the subwoofer like this, but if you do try it in the entertainment center, make sure to put something soft underneath the spiked feet. I really don't think the subwoofer will cause any damage to the TV (bass wavelengths tend to be fairly long after all). However, there may be some extra resonance when placing the subwoofer in the entertainment center. So definitely try to experiment with the front corner location too.
Thanks for the quick response. After laying awake thinking about it all night, I figured out i'm essentially creating a poorly tuned bandpass enclosure, so I'm just going to go straight to the corner.