Hi,
With Speakers cables usually need to have low resistance & low inductance. Capacitance shouldn't be an issue. The cable acts like a low pass filter with enough band pass that more than covers the required frequency spread.
Cables with their conductors close together will have low inductance. e.g. Goertz has some of the lowest values for inductance.
The downside is that low inductance usually gives high capacitance. High capacitance can make some amps unstable.
To get round this, amps may have Zobel Networks fitted near the output. These will help with stability. These networks also act as RFI blocks for the amp & feedback loop. They contain inductors. Speakers may have Zobel networks in them as well. These help to tame rising impedances that can happen with rising frequencies.
It is true that amps like Naim don't fit Zorbel Networks so they depend on the cable for stability. Naim cable has high inductance. The conductors are spaced apart. This also gives low capacitance.
Most cable are inbetween the Goertz & Naim, trying to aim for lowish inductance & Lowish Capacitance.
Cables like the Nordost has a good go at it. They have wire running in parallel which gives lowish self inductance without too high a capacitance.
The Townshend cable has a network which makes it more suitable with more amps. The low inducatance gives it it's flat response. Also this cable is also cyrogenically treated which alters the structure of the copper which improves it's porperties.
Also cable need to have an insulator surrounding them. The better the quality the less the dielectric absortion of the signal.
But at the end of the day, it doesn't mean much if you don't like how it performs.
SCIDB
