Speaking of RS8. Really love the synergy with my RN6. And to add some more impressions, all with RS8 as source, here is a cross-post from the Fir thread:
which cable did you like the most with RN6?
Yes, sorry, I was talking about Cleo II Octa. But right now I am loving the RN6 with Code 23.
Code 23 is giving me more bass impact and texture than Cleo II Octa or stock. The midrange is a bit more detailed and clear - the blackness of the background on the Code 23 is unreal - and with added depth and euphony that is just incredible - it makes the Cleo II Octa midrange sound a bit gauzy by comparison. Stock cable is very very good in the mids too, but a little more refined/thin and less dynamic and less deep than Code 23.
Code 23 also improves upper mid clarity over Cleo and stock. Maybe it brightens things up a bit but I think it's really more about increased clarity and impact.
And the treble is a tad clearer and more precise on Code 23, which is crazy given that it's copper vs. the silver of Cleo and stock.
I find the overall, slightly-warmer yet more dynamic, clearer, and more extended and 3D presentation of Code 23 to be addictive.
I prefer the red module on the RN6 but adding the Code23 brings it more toward black - only without the upper-bass/lower-mid muddiness I find with the black module. It's a deeper, more texture low end.
Soundstage with Cde23 is on par with Cleo, both being a tad better than stock.
There is something about the Code23... It's still newish to me so things may change and YMMV, etc. But this may be the keeper cable for my RN6...