The Dutch government funds many free NT2 resources. NT2 Taalportal has listening exercises aligned with the Inburgeringsexamen (civic integration exam) – the same target as De Opmaat.
When you buy a new copy of De Opmaat, you usually receive a code for a website (often Boom NT2 or a similar portal) where you can stream or download the MP3s. However, several scenarios lead people to search for a free version: de opmaat audio free free
Hence, the desperate search for "de opmaat audio free free" (the double "free" emphasizing the need for zero cost). The Dutch government funds many free NT2 resources
If you are enrolled in an NT2 course, the school often has a "teacher's copy" with a master code. Teachers can legally share the audio files with their enrolled students via a closed learning management system (like Canvas or Moodle). Hence, the desperate search for "de opmaat audio