Hadn’t heard of Audioholics so I watched a couple of videos. Guy seems to be very knowledgeable and certainly has a solid background in engineering. He makes some sense as well talking about cables and interconnects. However, I recently dropped a SR Purple fuse into my MA8900 and it has made an audible difference. I have no measurements to prove this I just know I hear an audible change for the better. Bass is more refined, tighter and more prominent. Cymbals are cleaner, clearer and have a nice sheen to them. A case of confirmation bias? Maybe, but I know that I made changes to both subwoofer’s crossover and volume setting both higher due to the improvements in clarity.