Internet chat and audio forums are filled with comments from end users saying the Beyerdynamic DT 990 pro headphones are too quiet and need an amp to boost them. We don't think so and will let you know why Beyerdynamic DT 770 pro and 990 pro headphones remain the standard in pro audio environments.
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0:00 What are ppl saying about the DT 990 pros
0:18 Are the DT 990 pros loud?
0:28 Beyerdynamic headphone design
