My dad has a set of two "bookshelf speakers" that we've had hooked up in our family room for ages. Recently, I noticed that the bass (and any mids, too) were sounding pretty fuzzy and generally nasty. Yesterday I took 'em apart and here's what I found. They're Infinity RS 2000s, and we think they're about 15ish years old. The highs still sound good, but as you can see, the foam on the mid/woofer has separated. Is it worth it to replace the mid/woofer cones, or should we junk these and buy new speakers?