To date I have been an advocate for quite a few years of Signal Wire being PC Triple C, or D.U.C.C.
These Wires have a common Trait that are very attractive, being they are not noticeably interfering with the content of the info contained within the sent signal, it is not adulterated in any way as a result if transferring through the Wire.
The next has been proven to be ubiquitous if the info gathered is based on approx' 12 Systems.
PC Triple C from my assessments of comparisons is able to make OCC Copper sound muddied and obscure. PC Triple C is going to make the insight to the End Sound much more real and will add clarity and a sense of expansion of the Sound Stage, the Horizon of the Sound will go back further.
D.U.C.C gives the impression the muddied OCC perception of the End Sound produced, has now been produced as exact as should be. D.U.C.C is the anti thesis of Triple C, in that the Rich Tone that is far from overbearing, is noticeable for it subtleness but being present and very clear not coloured.
More recent experiences has shown chassis connectors in conjunction with Cable Termination will have a substantial impact on the End Sound, in some cases to the point the changes are seemingly like devices are exchanged for something much improved.
Mitsubishi are D.U.C.C producers, they are launching a New Wire, it is known to be their best to date? It is not known if it is to supersede the last design for wire.