vair68robert - regarding your wire query - I'll contribute some personal observations. As Thiel's manufacturing director for the first 20 years, then as a purist recordist, and now in my product redevelopment/refinement undertaking, I have perhaps thousands of hours invested in wire assessment and experimentation. That makes me an interested amateur. Having access to aerospace considerations, research and solutions, and a longtime working relationship with Straightwire, I feel OK about commenting.
I had listed some rules from that accumulated experience. This geometry falls emphatically outside those rules. But its proponents have good cred, and their experience should not be minimized. They may have discovered a new way through the weeds of wire. The biggest question-mark for me is the extreme difference between positive and common conductors. Note that our audio signal is an alternating current application. Granted there are differences between signal + and common -, but nothing like DC which presents a clear one-way functional path. The Duelund Helix uses the common - conductor as a shield, which raises multiple technical issues for me as does the radically different conductor lengths and radiating field management between the pair.
Life does not afford the opportunities to run down every interesting approach. I'm not rejecting the possible efficacy of this wire, but it presents enough barriers of entry to keep it in my background - awaiting further input. Anybody heard or used it?
