Mr. Goetz was a friend of my father and he worked with him for a few years in Saudi Arabia. They worked for the Bechtel Corporation together and Goetz made speakers for fun as a hobby. I have two sets of them, one that I bought from him in 1996 when I was 17 for 800 bucks and another that my dad had purchased back in 1992. He had one room in his house with a bunch of projects going at the same time, sawdust everywhere. His wife had the most beautiful garden ever, it was completely irrigated and full of dozens of types of plants. Unfortunately I think he died a few years ago, according to my dad and I think that's why you haven't been able to find anything. I had a tweeter blow on one of my speakers so I replaced both of them and what Mr. Goetz told me when I was like 13 was that the secret to a great speaker is in the tuning of the speaker cone. You need to start at a low volume and tighten the screws that hold the cone in place and then gradually work your way up until the wood of the speaker box and the speaker cone itself start vibrating stronger than before and then stop and fine tune it to your favorite song, my set of speakers were originally tuned to Dark Side of the Moon and my dad's were Chopin or something like that. Mr. Goetz was a cool guy, I don't remember his first name but if you want it I can ask my dad, that might help you find out more. I know he entered national speaker contests and won multiple years but it was never a full blown production company, he made every single set different and by hand. You are lucky to have found them, they are one of a kind made by and an American for the sheer fun of doing so. Enjoy! He never listened to cds either, he hated the sound of anything other than vinyl and his turntable needles were like 1000 bucks each, back in 1991. Cool to find someone else with a set.