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Subwoofer strange noise

I have a less than year old B&W ASW300 Sub. I just moved it to another part of my audio room closer to where I sit and the sound has improved dramatically. However, I am hearing a "clicking" or "knocking" coming from the internal woofer at each beat when the unit is being driven, not excessively but at a decent volume level. It almost sounds like it has a tear in the cone material but it doesn't. I've looked very closely and there are no defects that I can see. Is this normal? This is my very first SW and don't know if this is a normal sound or not. Can anyone guide me on this? Does this sound like a defect in manufacturing? Thanks.
pdn

Showing 1 response by pdn

pdn OP
438 posts
 
My thanks to all of you who have responded. Sean, I appreciate the in-depth explanation regarding the adhesives. Certainly makes sense. I removed the driver from the box and operated the system. I could still hear the pop-pop sound with each beat of the song being played. As I turned down the volume from my amp or the volume down on the back of the sub, the pop-pop disappears. It seems to only do it when it's being driven but not driven beyond its capabilities. I have retightened all screws but to no avail. The pop-pop is coming directly from the driver itself. If it is an adhesive problem, I'm just going to return it under warranty (two years on this unit from B&W). Thanks again.

PDN
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