I ruined the Peerless ko40mrf cone midrange from one of my B&O Beovox 4703 cabinets. I liked the sound so much I removed the mid can assembly to see if I could read a make and model number stamp on the rear. I made the mistake of removing the deeply recessed bolt holding the magnet structure centered and aligned in the can. The driver has no basket frame and once unbolted, fell out of the can, ripping away the tinsel leads and foam ring surround, both attached to the plastic can. I will try to fix it, but its future looks dim. I want to buy an original replacement, and will search for this model under its peerless model number, but wish to search also under the model names of other speaker boxes that used it besides the B&O 4703 and the Mission 720 and the Gale line. Boxes being dismantled will probably not list the id number of the Peerless since there are none on it and therefore I need to search the box ID. Help if you can. Thanks for your patience.