Is there anyone out there who knows anything about Essence Speakers by Dale Pitcher?


I have read all the threads I can find on the web about Essence Speakers and about Dale Pitcher. I met Dale at the Essence plant in Lincoln in the early 1990s. I know about his eccentricities but found him to be a genuinely nice guy with a great passion for audio. I have owned a pair of early Gem speakers and currently own a pair of Gems from near the end of their production run. His speakers are amazing. I would like to become acquainted with other Essence owners and fans of the Essence product line. I have recently found and purchased a set of Essence Topaz 6 speakers from the mid 1980s paired with a pair of Topaz Subwoofers. Is there anyone out there with any literature, pics, documentation, history,  setup procedures, or an interest in having an informal club or chat room to share the joys and sorrows of these wonderful speakers?
lkp1952
And to all who have responded to my first inquiry I truly appreciate your contributions to the discussion. And to mre28m5 thank you for sharing your information. I was never introduced to the speakers you mentioned nor John Wright. I followed up on your comments and read up on both the speakers and Mr Wright.  I seemed so have missed much in the years gone by. There are so many wonderful vintage pieces of equipment lost and unappreciated out there. 
I have known Dale Pitcher since the early 1990's. My entire 2 channel main system is made by Dale. Preamp, amps, external crossovers, speakers, interconnects, speaker cables. All of my components were his top of the line. His stuff is incredible. He was truly an electronic genius. He was always very eccentric but unfortunately he went off the deep end about 6 years ago with a psychotic break. He is of course now out of business and unreachable. A guy who sold his stuff for 25 years is Duane Randleman, who is now with Automated Lifestyles in Bettendorf, Iowa. He is very knowledgeable about Dale components. And he even makes great speaker cables, interconnects, and power cords using a lot of Dale's principles.
Very well said above, Dale’s a genius in a vacuum and Duane is an extremely knowledgeable person about what sounds good or correct.

I’ve had a pair of Summits for bout 15+ years, no hurry to change or "find something better?"
I own the gamma summit speakers, essence sapphire amp and all cables made by Dale including an shunyata king cobra power cord modified by Dale, his equipment is top notch. And Duane randleman at automated lifestyle would be the most knowledgeable on Dale's equipment.
Every time I think about possibly upgrading my Gamma Delta's I realize how great sounding they are and a possible upgrade might not actually be a upgrade.  How much in today's dollars would it take to better the Gammas?  Dale certainly knew what he was doing.