Subwoofer Question

I upgraded my computer sound system to a Z-680 5.1 system this weekend. I’m looking at my old Klipsch 4.1’s and trying to figure out a fair price to sell them. They’re about 4 years old, but they still sound good, except for the subwoofer. I’ve been playing around with the sub by itself and it sounds more distorted than I remember it being. At normal volumes it’s okay, but crank it up and it sounds like there’s something loose vibrating in there. It’s not a clean sound at all.

So, the question is: Is there any way to “fix” a subwoofer?

Yes, it can be fixed.

The sound you hear is from the rattling of the fiber cone at higher power levels, these actually dry out over the years and begin to break down. They can be replaced as long as the coil and magnets are in good shape.