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Raw frequency response plots show movement of the headphone on the head has little affect on response other than in the very low bass indicating a well designed on-ear pad. Raw response is near flat from 30Hz to 1kHz with very little in the way of fluctuation—this is an unusually even response for a headphone of this type.
Harman target response would have a 3dB boost in the bass below 150Hz and a gently rising response from 400Hz to 1kHz. In comparison the SINE is a little low in bass response and…