I recently acquired the working parts of a damaged RW-10. I have the plate amp and woofer. The woofer has a small white sticker on the magnet with (K-113) is this speaker model number? I have been searching for the thiele-small parameters for the woofer but I have not been able to find anything. I was wanting to know if it is recommended to construct a custom enclosure for this woofer and using the original factory amp? Any help is appreciated. Thanks in advance.