Hi Tom - Lots of experimentation and solid results. No viable manufacturing capability yet.
The wire / cable journey has been a very deep dive. My solution is unique, effective and manufacturable. I have benefited from Ray Kimber, Mike Morrow, Steve Hill (Straightwire), Cardas and Galen Gerais at Iconoclast / Belden. My bottom line is that stranded wire is inferior to solid wire. Extruded insulations do harm, even the revered PTFE. Dielectric effects and signal propagation integrity are far more important than metallurgy. Connectors matter a lot.
Since my cable contains proprietary elements, I must be careful and incomplete in what I say.
The hookup wire is gauged per driver. Bigger than big enough is too big.
Each polarity leg consists of 2 half-sized conductors to raise the skin-effect saturation point. Cable is star-quad with a core drain to ground static charges, especially on drivers. The core drain provides some shielding (shading) without the tunnel effects of an external shield sheath. Drain and signal pairs are decoupled via counter-rotation and spacing.
Individual wires are enameled at 0.00075" film thickness for qualitatively lower effective dielectric constant than any insulation, including PTFE.
Cable layup uses round spacers to isolate wires with minimal (tangential-only) contact. Therefore most of the isolating is done via air-space.
Having no conventional insulation, the cable has very little body. Its integrity is supplied by fastening to cabinet walls and braces via adhesion to natural cork and cotton string tie-down. This exoskeleton wire becomes part of the cabinet and therefore is connectned to the crossovers and drivers via concentric / axial connectors.
Routing is more carefully away from driver fields, as are crossovers which are now on multiple boards to decrease field interactions between components.
There is a family of analog cables. Signal interconnects as RCA and XLR, speaker cables terminated in either locking bananas or GR Research Electras (Hint: Propagation field integrity matters most) as well as internal wire harness.
Obviously my 2024 introduction date is wrong. But, continual progress is being made.