Hello good fellas, at page 26 of this discussion, there is discussion about resonance about 340 hz within kh120II.
Mr Marcus, from Neumann, allegedly informed it could be connected to the design of backplate.
I found it in almost all units tested.
Here is a link to loop. If kh120II users could be so kind to test it and come back with feedback. I am listening at c weighed 85 db, 1,3 meter from speaker.
Resonance is not coming from drivers; it is caused by elements on the back of the speaker.
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