I purchased a Sony sm40 subwoofer, I've heard that adding polyfill will make it sound better. I'd like to try it out but I'm not sure where I can get it. Thanks
I own the SA WM40 and haven't done a thing to it, and it sounds great to me.
I'll be curious to see if breaking it apart is and tweaking it is worth it..let us know. Me, I'd rather not loosen any factory installed screws for fear things will get looser over time.