the card itself was flawed maybe, decent output but "brittle", maybe drivers were of low quality both in ALSA and OSS.
it was convenient to have things in a single place (volumes and application mixing) though pulseaudio would be more powerful (I heard pulseaudio would be especially relevant when adding usb microphone, bluetooth audio etc. which I've never done yet)
now KLANG promises to be JACK compatible. this is interesting. the problem with JACK is, you install it with a few applications and nothing happens. dead silent. or Ardour complains things are'nt set up and shuts down when you launch it. so, how the hell do you set everything up, I don't know. I know my way around the command line and do a bit of network admin but don't know how to get started on this.
oh, there are THREE audio systems, somewhat overlapping on each other. well easy thing is getting rid of pulseaudio first (crippling a bit your computer) and see if you can understand something about your empty QjackCTL.
that's just a big barrier to entry, especially as I merely want to launch software and see if it works, in the remote hope I can get friends who tinker with music to use linux and Free software, Free plugins and synths and stuff etc.
I'm totally isolated, as everyone who uses a computer for music purpose is on Windows, where everything works by double-clicking setup.exe (or maybe use a Mac). time is wasted apt-getting non working or garbage quality software in the repository as well, even when they use ALSA and/or pulseaudio and thus should be easier to get working in theory. Actually I can't even play doom with a midi soundfont, on an OS which has doom and quake as the only games. (with timidity and prboom, a combination that worked on windows)
so, KLANG pretends it can do everything in a single place, be both OSS and JACK compatible, midi, do pulseaudio things. (route things into other things, so maybe I can have a software audio compressor that works, on my global output? something to prevent screaming ads or youtube from firefox, weird filter tricks, music player output to a second stereo output etc.
I don't know if KLANG is a real answer to that.
I'm not even trying to rant, this is what happens to me any time I want to have fun with sound in linux.