I would think your choice of tubes will make more of a difference than interconnects, as long as you are choosing quality cables.
Pass and ARC
I have an opportunity, well two opportunities actually, to purchase at incredible prices a Pass Labs XA30.5 and an ARC Reference 2 preamp. Any thoughts on whether they would pair well? I would be using them with Klipsch Heresy III’s and mostly vinyl front end. I would be grateful for any and all constructive advice.