I just wanted to post this for the record; I'm not sure if it is because of these drivers or generally because of the jump from 1.69 (which I was using before) to 2.18.
Basically whenever I enabled equalizer effekts on 1.69 in addition to "Dolby Sound Room" (which should generate a surround like sound on notebook speakers, but instead just makes them sound kind of spatial, not really surround like) music got distorted heavily; this doesn't happen anymore and allows for getting the max out of these crappy laptop speakers.
Other than that I noticed that the soundcard immidiatly breaks off audio-stream once there is nothing more playing (e.g. it turns off and on whenever something plays, which can be a bit annoying when on headphones and surfing through the directories, as you always hear the "plop" from the turning on audio whenever windows plays the "click")
; I'm pretty sure however, that this is realated to realteks 2.18 drivers as this was the reason why I always stuck to 1.69 drivers.
Anyhow, great drivers, I guess I'll stick to them for quite a while now