If you Google Positive Feedback there are articles about tinned copper Duelund caps and wires. I don’t think we fully understand the metallurgy behind why they sound great.
Since my crossover and speaker cables is entirely wired with Duelund tinned copper and silver, it seemed like a no brainer to go with Luna for the preamp to amp XLR. I have ordered the Noir and Rouge (for the tape source).
BTW, reminded first hand how big of a difference cables make: I replaced the Metaxas ENOIS (which sound really good but are not actually balanced) with a Mogami 2534 balanced cable. While the Mogami does the job, the life and musicality is gone. The highs and lows are rolled off, and the timing is not quite right. They are somewhat fatiguing, which it never was with the DartZeel 50ohm or the Metaxas. If all you had was the Mogami, you wouldn’t notice what you’re missing.
Pricewise, the Mogami is literally 1/100 of the price of the Luna Noir!
The ENOIS is great value at about 1/10 the price of the Luna Noir.
I actually think the Luna is reasonably priced. You can go A LOT higher for a silver interconnect.