To upgrade the power supply in the Aries, you can replace the power supply circuit board with the Hoer-wege circuit board, or the Sean Jacobs external power supply requires that you remove the power inlet and connect with 2 custom DC cables (the power supply requires 3 different rails, voltages) terminated with plastic Molex connectors. Sean Jacobs will supply these cables.
But I’ve been using Kubala Sosna in the analog portion of my system for many years; upgrading from Emotion to Elation and now Realization. Their cables share a common design philosophy and sound. They are to my ears very neutral regarding frequency response. But each generation significantly lowers the noise floor allowing much more musical information to be heard. I started experimenting with their digital and DC cables about 4 years ago and have been similarly pleased with the results.