Mistratil - the Remastering Engine in no way hurt the sound of ripped redbook CD playback. In almost all cases it made the soundstage wider and more natural sounding. Yes, it does make all sources sound much like its DSD recording. If you don't like the Remastering Engine then turn it off. Will you like it in your system? I don't know - "sound quality" is very subjective. There are many people who think digital surpassed analog playback years ago. I'm not in that camp. If you want some type of bottom line regarding "sound quality" and whether you should buy the HAP-Z1ES here it is: If you don't have an analog system then don't buy the HAP-Z1ES, put the $2K in something like a Pro-Ject RM-9.2 with Sumiko EVO III: sit-back, relax and realize its blowing the HAP-Z1ES out of the water when it comes to "sound quality."