jasonb
Headphoneus Supremus
- Joined
- Sep 14, 2010
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The RE400 is single-ended which should work for your M9.
The RE400a has a 3-pole 3.5mm jack which should work with your M9.
The RE600 and RE400b(not sold separately) are balanced TRRS, which would need an adapter to work with your M9.
Which model do you have?
I havent recieved it yet. Just ordered the regular non mic version of the re400. When i say balanced with adapter i am referring to my old RE-Zero.