I just hooked up an ifi elite lps to the USB-X4 and can say even this makes a positive difference. I would think the Farad would add a larger difference.I actually use the USB-X4 with Plink to my MPD8, and it's a great upgrade; I am considering adding a Farad Super 3 as an external power supply to the USB-X4. Any experience about improving sound with it?