I have an issue with the surrounds of my midrange. One in particular (pictured) has a small left/right tear at the noon position. Suffice it to say, at the 'right' frequency, it sounds bad. What I am ...

I've got a receiver from the 70s that's been working fine until the last few weeks - it's cracking in the right front speaker, with no signal present (and it doesn't seem to be affected by volume). It ...