Not feeling that spike at 9khz. I was hoping it'd be a smoother alternative to the DT990...
More sub bass which is awesome, and less mid bass bloat, but that treble... looks like a harsh/sibilant prone headphone.
Still, that linearity after the sub bass seems VERY desirable. Looks like an EQ to lower 9khz by a few decibles will make the X1 quite a potent headphone.
Does anyone know if they produce the graphs using the stock cable or injecting the signal into the Jack socket via an adaptor. I don't feel the sound is the same as the graph especially with the 9khz Peak and Stock cable. It sound recessed here to me with stock!!! I am thinking of the sound that tapping the high hat cymbals are around this type of frequency and they sound recessed with Stock cable..