In what country did you buy the Denali? And what dealer?
Perhaps you have an imitation, "fake" Denali ?
The Denali is made from an all steel and aluminum chassis and faceplate.
As you know that is a subjective question and if you asked 10 different people you get 10 different responses. If you look at the specifications and features of the Denali v2 it is very clear it is a formidable performer compared to any power conditioner on the market.
Each, individual outlet...
https://www.amazon.com/Ideal-Industries-SureTest-Circuit-Analyzer/dp/B07LB5P1NK
You want to perform the ASCC test. You will need to make an adapter so that you can connect the tester directly to the wall outlet bypassing any intermediate power cord, including the one supplied with the tester.
There are many “hybrid integrated” type devices today. Some are network connected music servers that have what is essentially a dedicated computer and internal SSD or hard drives and a DAC. My rule is that if the device has any analog component to it - then connect it to the Denali. This means...
As a general principle: It is best to separate computer related devices from your audio equipment. Separation both in physical space and electrically.
The absolute crap that computers, wifi, routers, monitors and disc arrays spew into the air and onto the power line is astonishing. This is...
Well my friend, I would ask other creditable and knowledgeable people about balanced and unbalanced connections and the possible effects on hum problems. IMHO, I would do a simple test with good XLR cables and see what you get. It wouldn’t hurt to try it. Any good dealer should have some used...
I would NOT float grounds especially to the digital processors.
Unless you have an obvious audible problem.
Many digital devices use the chassis (earth) ground to dissipate noise.
I have yet to encounter any digital device that needed the ground lifted.
Some amplifiers need the ground...
If possible move the WiFi and ether switch to a different AC circuit that is physical away from your audio system. The farther the better and just a few feet matters. You can plug them into a common power strip. Just run a longer Ethernet cable to get to your upsampler.
Yes I have two Shibas: Haku and Hiro names from the Miyazaki “Spirted Away” movie.
The difficulty is SACD. Keeping a spinner that can do SACD and then also do a computer connection is problematic. Not that there aren’t many products that can’t do it, it’s more that I was looking for something...
Yes, I know there is always more. But I gave the easy big jump route. We use a NUC running Roon Rock. But a Pc Pavilion as a stand alone works and sounds great.