Any recommendations for aftermarket C-7 power cord for Bluesound Node 2i

Any thoughts on iFi and SPDIF coaxial cable quality? Is cable quality made irrelevant with the iFi?

@buschmann, the reclocking by the iFi sure helps reduce jitter, but not all SPDIF cables are created equal. 
The design, construction, length all contribute to sonic differences in cables; eg, soundstaging, dynamics, fast attack, etc. I've tried several cables with my CDP and Node2i running through the iPurifier, each was different.

So I guess I'm saying you get many benefits using the iFi by reducing jitter resulting in a smoother, more dynamic sound. So the cable probably is less important. So I went for the cable that sounded the best for my system.

WIREWORLD mini Electra is what I use.

Thanks to lowrider57's comments above, I decided to try out alternative data cables between the Node and my DAC. As I stated above, my original cable was a good quality conventional 75 ohm coaxial cable.

I installed a pretty radical SPDIF cable made by Mad Scientist Audio using carbon fiber for the center conductor. It made a dramatic improvement in the sound. Much more of an improvement than the previously upgraded power cable. The sound was better resolved, bass and treble were extended, and transients were crisper. I'm surprised to find such a change when the iFi is supposed to be regenerating a "perfect" SPDIF signal to the DAC.

I then decided to try an optical cable for something completely different. I installed a Van Den Hul Optocoupler II, and found that at first listen it's a small increment better than the coaxial with carbon fiber and iFi. I'll need a little more listening time before coming to any conclusion.

The Node, streaming Tidal HiFi or High Res files off a USB stick, seems to be capable of really good sound when cables are optimized. It's already my best quality source of music, and it's not fully tweaked yet.

Ice Age Audio or Cullen Cables,
Both are really good!