Elektron uses Burr Brown converters, which are known for being high quality audio for most applications. When it comes to “high quality” ADC/DAC devices, it levels out around Burr Brown until you are willing to spend $10,000 or more for a single stereo out (for things like Bricasti or Lavry interfaces, mainly used for mastering engineers and the such.)
I am so confused by people expecting Elektron to just cut corners on this type of stuff, but I have also seen forum posts here where people say “The DACs in my audio interface sound MUCH BETTER than Overbridge” and think its due to conversion quality when its the exact same chip in both. Gain staging is an area most people aren’t good at doing consistently, especially if you are a “I hate computers” person who doesn’t bother to learn how to send signals into your DAW, so I chalk most of that up to error.