The Lambda's are the boxes that angle the speakers towards the ears more like speakers, right? Yeah, you're right, that shouldn't instigate the "Stax squeak", there's no way there's that good a seal there, right? So what causes the Stax squeak again? I realize it's the seal, but what is the seal doing, because it sounds amplified...perhaps there's a different cause, but the same result that is happening?