There Was An Old Blue Thunder 12 inch subwoofer that used to be up in the racks at the hive I believe. I got them an old subwoofer a while ago and I believe it was this one and I did not know if it belong to anyone. I tested the coil 4 resistance and it seemed to be good to go on that end however I do not know if it belongs to anyone at the hive as I have never seen or heard anyone talk about it. I was going to use it to add to the PA system that we use for maker faires when we are able to use the larger amplifier. If this belongs to anyone please let me know Kama I did grab it to do a little testing on it to see if the coil was still good 4 things other than just resistance LOL.