But you skipped my question "My headphones are 32 ohm so what is the difference in "<32ohm" setting and "32~64ohm" setting in the soundcard drivers?"
I didn't skip it, I explained that you should take questions like that to either the 'Beyond MusicBee' board or to a specialized audio forum.
So this is a screenshoot of my soundcard drivers. It doesn't have ASIO support?
I think you removed something you said about the age of soundcards?
No problem, but I typed an answer to that already, so I will address that.
Over the years I have been forced to ditch a lot of soundcards only because driver support was lacking for newer operating systems.
The aging chipset that the soundcard uses is usually the cause of that.
Sometimes simply playing stereo is still possible, but multichannel and/or more sophisticated features (such as asio) can become problematic.
The quick look I took at the official driver page only showed a 4 year old driver with no mention of, or a separate download for an asio driver.
But it looks like asio is integrated in the standard driver then?
Can you recommend me some "new" soundcards which would have any advantage over mine or those two, please?
It's not that I want to make it difficult for you or something, but it's good practice to try and keep forum boards and topics 'clean' and on-topic.
So that question/discussion would also be for the 'Beyond MusicBee' board.
Back to the original 'issue': If I understand correctly, your soundcard works well together with MusicBee with the 'normal' drivers.
So what are you looking for to improve exactly?
Asio does not have a better sound quality, so why would you want that?