I had NORDOST LEIF series PURPLE FLARE cables in my “B” system.
I continue to have NORDOST NORSE 2 series FREY full cables array in my “A” system.
(1) there is a BIG difference in audio performance as you move up in their product line, and that improvement is not subtle. The PURPLE FLAREs were okay, but are no match for the FREYs....full stop.
(2) The litmus test in point (1) was personally witnessed at an audio expo in TORONTO wherein NORDOST demonstrated the performance of various cables as you move up from stock cables, through various models , and up their VALHALLAs. (No very top ODINS at that show). NORDOST ran a repeated 3-day audio expo demonstration symposium in Toronto on that very issue, it was attended by thousands (myself included) .
The author wrote an article reporting on the shared observations of the thousands of attendees at the TAVES audio expo in Toronto in Nov 2014.
"... I had a chance to sit in on a couple demonstrations in the Nordost room, giving my feet a well deserved break. I’m very familiar with the benefits of high quality cables and use a full Nordost Heimdall 2 loom with my reference two-channel setup. That being said, I always find the Nordost demonstrations to be an “ear-opening” experience.
Michael Taylor from Nordost demonstrated the significant sonic benefits of replacing an OEM cable with a Nordost model – in particular:
1) a swap of a single USB cable, from OEM to Nordost Blue Heaven ($250/2m), to Heimdall 2 ($500/2m) and;
2) a swap of a single RCA interconnect, from OEM, to Blue Heaven, to Heimdall 2, to Tyr 2 and finally Valhalla 2.
Along with convincing the audience in the room that cables DO matter, I’ve now got the bug to upgrade...”