TEST RESULTS
Okay, you're not all going to like this. In the end, it turned out the equipment used were:
MBP -> USB -> Gungnir
Nordost Blue Heaven going from Gungnir RCA#1 -> Input 1 of the SYS
Wire World Oasis 7 going from Gungnir RAC #2 -> Input 2 of the SYS
Output from the SYS goes to the RCA input of the Mjolnir via a pair of 6" PYST cables
From the Mjolnir -> Stock cable -> Alpha Dogs
When switching, I had the assistanct switch on an electric toothbrush to mask any possible click I can hear from the actual chassis of the SYS's switch spring mechanism.
The SYS itself does not make any sound through the output, but I paused the music to be sure.
Levels were not adjusted and only 1 song was used. (Lorde, Tennis Court).
So, I had no idea which was which input so I just marked on my 'score sheet' as A or B.
My assistant had two states to work from, switch were X and Y.
We then had a scoring system where I had to assume whether A=X (and B=Y) or the other way around.
We did 15 tests.
If A=Y and B=X, I got it right 9 times out of 15 which is 60%. Okay, it's only 1 or 2 more than a 50% split.
An interesting result was that, if we discount the first 3 results, I got 8 out of the last 12 consecutive guesses correct, which is 66.7%. The same ratio applies for the last 9 consecutive results. I don't know if that means I got better at it or what but I didn't try the test before so for the first few I was guessing quite a bit.
Is 60% from 15 tests significant? To be honest, towards the end it was getting a bit boring and I found that I'd arrive at a conclusion in less than a minute and it wasn't really about focusing on one detail/aspect of the sound, but more of an overall picture like the 'height' of the 'head stage' which is probably a bit weird.
I can tell you for certain, there IS a difference. But seriously, it's a hair-width. With the Blue Heaven being $364.99 for a 1m pair and the Oasis 7 at $110.00 for the same length, it's kindda debatable with regards to value and all that. To be honest, I don't think I've concluded that I prefer one over another and that's really not my focus here. If pushed, I'd actually say I prefer the airiness of one but a slightly more stable soundstage of another. Wishy-washy words, I know, but that's how the difference manifests itself to me.
I'm open to hearing more about the significance of the 9/15 figure. Some would probably have something to say about the fact that I have another 6" of PYST cables, a switch and an attenuator in between, plus there are more transparent set ups out there for sure. (The Mjolnir's SE inputs are a step behind its XLR inputs, IMO.) So I'm not pretending this is anything definitive by any means. I'm just stating what I got.
My conclusion form all this, and it's a personal one, is that while there's a difference between cables, it's not a hugely apparent difference, specially if your set-up is more average like the one I used. I don't know I would have heard more or less of a difference if I used another pair of cables perhaps with even more of a price gap or design principles. Going up the range, Nordost has their mono-filament and Wire World I'm sure has some other tricks so who knows.
Would love to hear from you guys about this...