Using 2 different brands of interconnects?

@genez 
“If you have yet to learn what you are specifically looking for?”
This is very true. At first I wanted bass, then the magic of electrostatic, then more accurate and natural, finally musical. So, what I wanted changed over the decades.

It depends is always the right answer. But as my equipmemt got better and better I zeroed in on a brand that consistently performed the best for me (Transparent). I have always suspected that combining a warm interconnect and a cold / detailed one serially would act as a filter... so that in the limit it would be a bad idea. 
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Also, comparisons take time and after hundreds of hours of comparisons over decades... I really want to enjoy listening to music, not listening to my system. So, now I have a trusted brand that I know complements my equipment (ARC, Sonus Faber, and Transperant is a known compliment which I discovered independently) and and only requires a decision by me on how much to pay.

@stringreen My experience with Cardas products are that they are warm and if you have a hot, trebly system with noice, they can help hide it. The higher up the chain you go, the less warm, but if your system is balanced and quiet, then they obfuscate the details. For my early systems, that was exactly what I needed. Since then not so much.

$100 is relatively inexpensive for interconnects. The correct answer is, “it depends” the better your components, the bigger the difference you are likely to hear. But if your components are under a couple thousand each, it is unlikely to be noticable.