I'm not into audiophile stuff btw, just decent quality things really.
For example, I have a pair Bose 901 speakers that are ~50 years old and they sound fantastic.
But it's not even that, if properly engineered even stuff which hasn't the primary purpose of sound reproduction can sound good.
My 15-year old Apple Thunderbolt Display, the 8-year old iPad Pro and the 5-year old Mac Book Pro all sound great.
But—
The speakers in my 2025 LG TV? They shouldn't have bothered installing them but instead put them right into a landfill.
Speakers in my Asus gaming monitor? Like someone dragging a nail on a chalkboard.
And, weirdly, the Apple HomePod mini is pretty bad at reproducing music. A 10-year old Bose SoundLink mini beats the pants of it. 🤷