The ultra high SINAD game is the audio equivalent of clickbait- don't fall for it.
You won’t believe what experts have to say about that! </sarcasm>
Always trust your ears, but don’t trust your eyes.
My thoughts.
We all start with a love of music. As we enjoy the music, we experience something unattainable. A better setup, etc. This could be going to someone’s home, going to an audio salon, or hearing a live concert, or going to a well calibrated cinema.
Now we start our path to upgrades. This is our hobby, right? We read reviews, research products and also have a mix of affordable and unaffordable gear.
With each incremental upgrade, we get a dopamine hit, we get a bit of sighted bias, etc.
Now we start to learn the science. It’s exciting because you no longer need to rely on subjective reviews or traveling to stores or even in home trials. Better yet, in the grand scheme of things getting high SINAD gear isn’t expensive.
There is a branching point now, with three options. Some people migrate between paths.
1) Audio Nirvana
Armed with your knowledge of science, you pick up a great AVR with some sort of room correction, reasonable DAC and amplifier performance, along with passive speakers that are neutral and look attractive. Using REW, you verify speaker positions, do some tweaking and you are done. You have reached your end game. You are happy.
2) Gear Acquisition Syndrome
Armed with your knowledge of science, you seek the very best. It’s your hobby after all, so you start to go down the route of DACs with increasingly higher SINAD and voltage and amplifiers with decreasing gain and increasingly higher SINAD. Never mind that you have gone from the simplicity of a remote and full HDMI CEC integration for movies, music and anything you want, but you now have dedicated steamers, DACs, preamps and amplifiers.
Of course, your enjoyment has issues like needing to power each individual component since 12V triggers may not readily be available, and in the focus on SINAD, it is easy to forget the focus on ergonomics and usability. Think about how many people have complained about the IR remote on a Topping DAC. Think about how many people still bought a Topping DAC in the last 5 years…
3) Enlightenment
The person in audio nirvana may still have the belief that this is the very best setup for their budget. He or she may not have gear acquisition syndrome, but there will still be curiosity of other gear.
Enlightenment comes when you come back to enjoying music and movies. You hear your favorite song on the radio while driving or someone in the park playing it with a portable speaker.
You hear a 22 db SINAD 300b SET and enjoy the music or pick up an active studio monitor and enjoy the heck out of it, know that it has a simple chip amp with a lot of DSP.
You realize that gear is great but it’s the content that brings joy.
At this point, you stop caring about the SINAD. You get the biggest and best speakers you can and are satisfied with what you already own, knowing that chasing higher performance is pointless since it no longer affects your enjoyment of the music and the gear.