Gregm, what do you have for DIY cables that may better Nordast Valhalla?Freemand, pls note that I use the wires and prefer them in the controlled context of MY system. So, I can't say in absolute terms that the wires "are better" than Valhalla...
As to what they are: simply paralleled silver and copper conductors @~1" apart, supported by masking tape (one side only). They are UNSHIELDED which may make the ICs unsuitable for other applications.
My recommed above was to try a tested diy recipe for ICs and perhaps buy the spkr cable ready made since it looks cheaper.
Cheers