Hi folks. This week I found a pair of speakers in my family's attic that are likely at least 40 years old. The make/model is Advanced Speaker Korp - Model V. (Pics attached.) I’m wondering if anyone knows anything about these ... how much they may have cost originally, how well regarded they may be today, and perhaps most important, whether local repair shops might still work on them. I tested them today and they still work! But I can hear that at least one of the woofer cones probably has some foam deterioration because it’s making that typical buzzing/flapping sound on lower bass notes. As far as I can tell, there would be one complication involved in repairing them: the mesh grills seem to be sewn directly into the cabinet. Does anyone know how a repair shop would handle this? I’ve never come across a speaker quite like this before. Thanks for any help!