How to improve sonics of standard AC connected Dev

This applies to any device in your system that has a non polorised AC Connection. I found in my system one device that was outputting 1.75 VAC ripple. I checked the other device and it too was improved. I posted this earlier, but I mentioned specific products and it was declined post. Anyway, remove your IC's from a two prong non-polorosed device, plug it in to the AC mains and measure from the ground IC output to the source ground and make note of the AC ripple, then rotate the AC plug and see if the ripplr drops, orient the AC connector that outputs the lowest ripple. I took one device from a whopping 1.75 VAC to 600 MVAC! Instant improvement in sound quality, I was able to do this with two devices in my system. Give it a try!