Beyerdynamic DT108/DT109/DT100 Original Lautsprechertreiber 50R, 2KR, 400R
Genuine Beyer headphone loudspeakers. 400Ohm, 50Ohm and 2KOhm for the various users. 50Ohm for headphones, 400Ohm for intercoms and 2000KOhm for low power / sensitive operation. Mix of Grey/white and Black/Grey.