Subwoofer lost its "WOOF"!!!
So i purchased a pair of 800w 10" subs at a yard sale for 20$. They were cheap so i assumed they were faulty but figured i could try fixing them. So i get them home, hook them up to an amp and nothing happens... until i place a little pressure on the cone and thump thump thump, they work... and they're heavier and hit better than a pair of 1200w 10" Sony Xplodes i have... until i let go of the cone. I'm reading things about blown voice coils and what/not and was hoping someone had an idea how to replace one. Or if my problem sounds like something else all together. Any ideas DIY'ers???