Nordost Red Dawn revII vs SPM

Had both. Greater difference on the speaker cable than the I/C -- the reason, allegedly, that capacitance matching is not a major issue on the speaker cable... Agree w/ sugarbrie on the price differential though...

Rackon, do you find the Quattros emphasise the lower mid-range a bit? I am trying out the Quattros now (SPM ref for speakers) vs Bearlabs and Siltech silvers. Am using full sets from each manufacturer. I find (or am I imagining) that the Siltechs are a tad soft and "kindly euphonic" in the upper register, Bearlabs do not colour the system, and the Qs as above.
I had the same experience as you with Quattro vs SPM vs Red Dawn (never used BHeaven).

Rackon, thanks for your comment. Subaru, I wonder whether the sound will become smoother or dull, if U go for a non-silver rca... Regarding RF, a friend suggested the following(I never had the need to try this out): take alu foil and wrap it around each cable individually, like a cylinder -- i.e. makeshift shielding. Keep the two cables separated. Allegedly, the interference disappears.
But, as I said, this is hearsay: I haven't tried it nor heard it.
So, just an idea. For what it's worth...