Cables ... no longer opinion

Two ribbons placed together is obviously the best for SPEAKER cables. It's an immediate consequence of Maxwell's Equations. Just as two small conductors separated by a significant distance is the best for line level. That's assuming equal dielectric to take dielectric absorption out of the picture.

Doesn't require an experiment. It's immediate from the physics. terry91,461 posts04-03-2021 10:07pmYou can think of it as (1) speakers must have low inductance and (2) line level must have low capacitance. The cables and the equipment terminations form LR and RC filters respectively. But it doesn't matter much if lengths are short.

While I don't disagree much with your conclusions about inductance and capacitance mainly due to source and load impedance, I don't see where Maxwell enters the equation, pun intended.

WRT the Sewell flat adhesive speaker cable identified by nonoise:

https://www.amazon.com/Ghost-Adhesive-Speaker-Conductor-Sewell/dp/B079MMFVFJ/ref=sr_1_3?dchild=1&keywords=ghost+wire&qid=1618284602&sr=8-3

it would be very easy to glue two layers together using their self adhesive surfaces, and then cut them down the centre to provide two ribbon cables. Simple: If you liked the result you could add an outer protective layer.

Might be worth trying for a cheap taste of the ribbon topology.

@pesky_wabbit. I’m sorry but once again this is incorrect. The width of the conductors combined by the given gauge tell us these are as thick as a dime or penny. This is not foils. This is not similar. And people will not get a taste of foils like this at all. The reason foils work like they do is how they are as thin as a human hair, while retaining the gauge. If you made the cables you’re suggesting, you will end up with something closer to Goertz cables.

Josh and Downsize audio is still around. He makes runs of cables every few years or so. He is just reclusive, and suffers with his health. He recently made cables for several people on the forums. Maybe one of them will give their thoughts on the subject of stacked conductor foil cables. That and almost zero insulation or skin effect is what Josh is all about. And the stupid high purity conductors.

My experience: I have had Josh's foil speaker cables and foil interconnects in my system (see description below) for a couple of weeks. What I am hearing and enjoying: greater dynamic range, increased clarity, faster transients, bigger sense of space, and powder dry bass. I feel like I got a significant upgrade. And Josh and Cullen were easy to work with.

All of the above are improvements to my ear from my previous loom of about the same price that was also custom made, but by a different cable fabricator.

My system: English Electric 8 switch; Silent Angle switch; Network Acoustics ENO Ethernet Filter Ag & ENO Streaming Cable Ag; Allo USBridge; Border Patrol SE-i DAC; Kinki Studio EX-P7; Downsize balanced foil interconnects; EX-M7; Downsize foil speaker cables; Tekton Double Impacts.