WOW, the PLiXiR Elite BAC400s are by far the most cost-effective upgrades I’ve ever owned in my entire 45+ year audio career - I’ve connected two of them to the High Current duplex outlets of the Powerplant P20 to power my two MSB Select II DAC powerbases, and have been breaking them in (together with the balanced AC power cables) during the last few days. The audiophile journey of asymptotic diminishing returns… you know, painstakingly selecting main components to build a system solid enough to be start in the “high 80’s” 80’s” (relative performance, given real-world constraints in room acoustics, room volume, etc.), then celebrating when the 90 threshold is breached, only to stumble back and forth through trial and error, with each incremental gain being far more difficult than before, to finally reach a limit of say 92-93 points in one’s optimized system… well, I think my system was at 91-92 points, but the BAC400s single handedly added 10 points, just like that. Yes, my mental constraint of what I though was possible (in absolute performance) was clearly exceeded. I’ve now learned that even higher absolute performance is possible, and that the imaginary “100-point perfection” bar can actually be elevated even higher than I had imagined, thanks to the PLiXiR Elite BACs. A new journey to discovering new heights has been sparked.