66 dB at 1kHz 86 dB at 10kHz (ouch my ears) This is not at all flat and the implementation suggests it has low gain at lower frequencies. Without publishing o

66 dB at 1kHz 86 dB at 10kHz (ouch my ears) This is not at all flat and the implementation suggests it has low gain at lower frequencies. Without publishing of a full response curve this seems like nothing more than university PR. Any comment from the authors of the study?