I bought a pair of these speakers at a yardsale and one of the woofers is blown, I looked all over the internet and I can't find anything about these speakers. The cabinet is really solid and has a 1-inch dome tweeter, and the one that work sounds really nice. Are there any replacements for the woofers in these speakers? The screw holes are fixed with metal threads so it's gotta be an exact fit...the woofer is 6 7/8 inch across accounting the frame and has rubber surrounds.