Nordost Shiva, Vishnu, Brahma?

i have been auditioning a variety of PCs for my esoteric, same audio as yours, but in a very different system, so my comments can be taken in general only and within the context of my system.
i auditioned the brahma and valhalla on my ux-3se. with a TA ref xl [latest version] PC on the preamp, i preferred the brahma over the valhalla as the val thinned out the highs greatly and introduced glare. my system is already quick and resolving. speed and clarity was great with the valhalla though. the brahma was a happy compromise. however, neither nordost in my system seems to be the best choice. recently tried shunyata helix alpha [non-vx] on the cdp. the python was good, the anaconda clearly better, but less weighty overall than the TA ref mm PC i auditioned. the shunyata gave a more balanced top to bottom presentation IMO in my system. the nordost gave the extremes a thin clarity, the Transparent clearly gave huge bottom end wt, perhaps more than i need in my system. i will audition a few other PCs before finalizing. i have heard that some PAD PCs may be an excellent choice for the x-03. there are a few different PAD choices, no one can really advise you which is best in your particular system. check out some threads on here. there are numerous PCs in $500 - $1000 - $1500 - $2000 plus full retail price ranges depending upon length. dont know if anything here is helpful. cheers.

hi mbump -
at this time, i dont have access to the TA ref mm PC for reevaluation. my notes suggest it is excellent though adds more emphasis to the bottom end. i am looking for something that will not inhibit both top and bottom ranges, among other things that PCs do. At this point, i am more concerned with the nuances at the top end. ie, not slighting the highs in terms of body or texture. the anaconda alpha helix gave more evenhanded coherance, but perhaps a bit more upperend energy or color(?) than i want. soundstaging was excellent. as mentioned, the brahma was excellent, but the anaconda gave more depth. re: elrod sig 2 - i tend to agree with your comment. in my system, it introduced an excess of general warmth that i dont need now that i have aperex bugleboys in my pream. in terms of overall staging, i am unsure if you will achieve a really substantial increase in staging with any powercord vs change of speakers in your system. another thought - noted your listening spot is against the back wall. if there is any reverb, you might be reducing the perception of staging from your listening spot. hand a blanket against the wall as a quick check to see if the overall presentation improves (or not). also, do the wires of your piano vibrate or does the piano cabinet interact when you listen at moderately loud levels? just curious about this.
i will be looking at a PAD anniv contego PC and a tesla model for the cdp in the next 2 weeks. cheers.