PrimaLuna One, interconnects,cables,power chords

Nordost Blue Heaven interconnects and speaker cable, and D.H. Labs power cable. Check the used/demo list at Upscale Audio for a good deal on Nordost Blue Heaven speaker bi-wires (last time I looked.)

I have a hard time justifying spending a lot of money on cable, PC and I/C just to improve this amp's "sparkle and transparency" (not that you need my justification). One of its biggest attractions for me is it's price/performance ratio. What I would do is some tube rolling. You can change the sound of this amp quite a bit by changing the small tube's and power tubes. You can play with new production tubes on the cheap or NOS. Call Kevin Deal and discuss w/him your what you want to do and see what tubes he would recommend. I would agree that changing your speaker cable to Nordost might help the high end, I'm just not sure how it will effect the bass.

Could someone explain what NOS tubes are. I assume they are re-conditioned or something. I just am not sure what this means.

New Old Stock. Means that they are tubes that have not been used but are no longer in production. Unfortunately many tube sellers on the internet apply this designation to any old tube, used or not. Caveat emptor.