Node 2i performance suggestions pls

I purchased the better of the two available Pangea power cords that fit the Node 2i and in my system it did not improve the sound at all, if fact perhaps the opposite.  Sent it back to Audio Advisor for a courteous refund.

@jetter , I suggest you try a better cable than Pangea. I have 2 of them at the bottom of my closet. 
A good PC will really open up the Node.

@lowrider57  Thanks for the insight, sounds like a plan.  Do you mind sharing which PC you found to work well?  

Sure thing @jetter . I'm currently using the Cullen C7; huge soundstage, very organic, good detail.
I auditioned a Wireworld which was excellent. Very dynamic, detailed, with a more forward presentation. Now that my system has changed, I think I will try the Wireworld again. It's that good. 
I would advise not to go for the entry level cables. You can get a very good C7 for $150 to $200.

@lowrider57  Thanks for the information.  Now that you have further explained it I see that C7 is the power cord type.  I mistakenly thought that in your first post you were saying to get an aftermarket power cord and then going on to say get a CAT 7 ethernet cable and were further abbreviating CAT to be just C.  My bad.