I didn't buy a soundcard, no. It wouldn't be too hard to add one in, but I don't feel like going through the effort.
I have a couple FLAC files, but I don't go out of my way to download them at every opportunity. For the most part, it's gonna be MP3s and videos.>>2798
I forget if they were bluetooth or not, but I can't use bluetooth-only speakers. I did notice that they're by Creative Labs though, which was the company that bankrupted AdLib and made very old soundcards like the Soundblaster.