Hi guys. This is my first post here and i really hope i can find a few answers. My dad bought some speakers probably around 30 years ago or somewhere close. These speakers are really nice. Im not sure the brand of speaker but i know that on the back of the speaker box there is a metal tag that has LYON on it. also has a number like 1066 on one and 1068 on the other. says their general offices are in Aurora, ILL. I would like to know a little about who this LYON company is if anyone of you know. Now second, each box has a tweater and a sub. the tweater i have no idea what kind or type it is. it looks like its aluminum and has a longer looking cone coming out of it. the sub is a 12 inch woofer. he has a JBL cross over with a dial to adjust the treble i believe. I would like to maybe replace these cross overs that are on the box but i have no idea what to look for. i also wouldnt mind getting a little more power to the sub woofer so if anyone has a suggestion there i would love to hear it. i dont want to damage the speakers just want a little more bass out of them. i have a kenwood home theater system i have them hooked up to and you dont have to turn the volume up hardly at all with these speakers. anyway, thanks in advance. i will try to get some pics of them soon for u.