Interconnects: solid or hollow core wire?

Z, And are your s-c cables thick or thin gauge?

Pmboyd,
I'll email you to not promote my product.
But to answer your question about the difference.
Sonics are more open and and imaging is pinpoint.
The depth I've been getting is spooky.
Solid core has allowed me to reach the true three dim. soundstage that I've been trying to achieve for years.
I've heard IC's that come close, but the price has always been a factor.

I know what solid core is. I know what stranded is. I do not know what hollow core wire is? Isn't wire by definition solid as even stranded is made up of small solid core? Is there an audio cable that uses metal tubing?

Stranded is multiple stands of small guage wires to make up the core.

Hmmm, I thought Supra used hollow core wire but they just confirmed that the wires are wrapped around an hollow tube of PE. Their literature is vague about it. It seems to suggest they use hollow wire... a new one on me, too, hence the question!