Non shielded interconnects for connecting to tube integrated gear

if we send a 20 kHz signal down a cable with and w/o that tiny capacitance, what will happen?

It depends on the system setup and local room environment and susceptibility to interference/noise. Potentially unshielded cables can sound very open and transparent.  I'm  able to use unshielded cables in my  tubed system and they're terrific sounding.  This will be totally dependent on individual system variables
Charles 

@randy-11

Depends on the entire circuit! The output impedance of the pre and input impedance of the amp, as well as the remaining reactance of the cable without the shielding. Krell’s CAST is a design specifically designed to eliminate such issues by using overwhelmingly high output impedances that this type of effect should vanish.

However my suspicion is very little.

There are some proponents of "naked" interconnects, and I keep meaning to try making my own. These are solid-core with cotton insulators and nothing else.

I have not heard or measured either. I’m just explaining the possible theory. :)

Best,

Erik