My criterion for electronics evaluation:
1- Reputable, established company making for audiophiles
2a - If amp: read the specs only watts into 8, 4, then 2 ohm (if published) (is it beefy?)
2s - If speakers…read specs only load across frequency (is it difficult?)
3 - How it sounds.
I don’t care about measurements any more. I used too. Back in the 70s when I was a teenager, I succumbed to the THD and watts wars. I got burnt… over it.
I love music, not equipment.
BTW: I started a Measurements thread if you want to discuss what measurements you use here:
https://forum.psaudio.com/t/acid-test-measurements-what-do-you-look-for/13222
Peace
Bruce in Philly