OK, All of you other SVS owners out there, I have a puzzle for you. I have had my SVS 16-46 PCi sub for about a month now, and am continually blown away by it (sometimes literally). The other night, I was watching “The Exorcism of Emily Rose”, during which a loud rattling sound came from the direction of the sub. I traced the sound to the grill, by removing it and repeating a specific sequence (no rattle w/out grill). Jim and Eric at SVS were fantastic at trying to help me troubleshoot this, going far beyond the call of duty, but here’s the rub: while the sound was clearly related to the grill, nothing we did to try and dampen the sound worked. After adding more foam blocks, replacing the grill itself, and adding foam shims (the grill is now extremely tight (no chance in hell of vibration), the sound is just as loud. Quite by accident, I discovered that the sound is caused by air turbulence (and not vibration), as the air blasts pass through the grill (I put my hand above the grill-less port to the same effect), so now I simply remove the grill when watching a movie – and the bass is absolutely perfect to my ears. Thing is, I don’t listen to my movies at anywhere near reference levels, and I know I’m only pushing the SVS to a fraction of what it can do. Many here push their subs much louder, and are just as discerning (many more so) as I am. And yet there is not even one mention of this… Anybody have any thoughts on this, or am I simply succumbing to premature senility here? HELP!!!!