I never really thought about it much before besides the fact that I had noticed a long time ago that my gear sounded better when it was attached directly to a wall outlet, rather than to a surge protector. Recently, I was trying to figure out a issue I was having of gaming on my PC and my aim with my mouse feeling severely different depending on power related stuff. For example, having my ceiling fan on or off would change the responsiveness of my mouse, having LED lighting and regular lights on in the room did the same... just really weird stuff. So while trying to solve that issue, I started looking into power conditioners and just decided to try out a random "power conditioner" I came across online on Amazon: the Furman M-8X2 Merit Series. In the end, it didn't really fix the problem I was having with my gaming but when I went to listen to some music as I usually do (I had ended up plugging all my audio equipment into this Furman as well... because why not? The extra outlets were convenient) there was just an immense difference to how my music sounded. I literally exclaimed to myself: What?! Vocals just sounded so much more clear in music that I was familiar with and was really in your face and dynamic like the person is singing right into my ear. Bass sounded so much more clear and controlled... I was just really shocked by the difference. Background noises in songs became a lot more pronounced, instruments, strings and all that just way more crystal clear. If I go back to the regular setup it's like everything was blurred together in comparison. Anyways, I was still trying to solve my original issue with gaming so figured I would try a UPS (uninterruptible power supply) to try and isolate my computer and stuff from any "power issues" I may be having in the house. I didn't know much at the time and just ordered a line interactive UPS... but these things just pass through your regular AC utility power to your devices like any regular surge protector would... so it didn't really fix anything gaming-wise. And just for the heck of it, I hooked up my audio equipment to the UPS and my music sounded like crap in comparison. Bloated bass, vocals pushed back and less clear... just unpleasant to listen to in comparison. These are no small differences I'm talking about. It made me not want to listen to my music anymore... lol. Tomorrow I have a double-conversion UPS coming in which is pretty much the best you can get in terms of isolating your equipment from power issues since it is constantly converting power from AC -> DC -> AC. I will report back on how that one goes... But man, that Furman really opened my eyes. I was originally going to return it if it didn't solve my gaming issues and even though it didn't... damn, I might just keep it around for my audio equipment if the double-conversion UPS sounds like crap as well. Maybe something is just funky with the power in my house but this whole experience really opened up my eyes on how much power can make a difference. Listening to a Focal Utopia out of a Audio-Gd Master 11 (hooked up through HDMI i2s cable to a Singxer SU-1 USB digital interface which is hooked up to my gaming PC) in case you're curious about what I was using to listen. Also heard the same differences coming out my KEF LS50 speakers.