Full Product Description
Frequency Response Measurement & Correction
Looking at the measured frequency response, the bass starts to roll-off at 100 Hz and is -6 dB down at 20 Hz. Relatively smooth response moving going up in frequency with a small broadband dip in the 200 Hz to 900 Hz lower midrange which gives the headphone a laid-back sound. Then a little peak in the 1.2 to 1.4 kHz range which pushes the soundstage forward a bit in the mix. This is followed by a -3 dB dip in the ears most sensitive range at 2 kHz. There is a +6 dB narrow band peak at 4.6 kHz, which produces a bright, almost harsh upper midrange quality to the sound of the headphone.
Engaging the high-resolution convolution filter transforms these headphones into an accurate sound reproducer with a ruler flat frequency response that extends from -3 dB at 18 Hz to 3 kHz +- 0.25 dB tolerance and with a +- 1dB variation out to 6 kHz. With the filter, one can take this excellent headphone to a new level of listening experience. One can listen all day without a hint of harshness with the neutral filterset. The neutral plus treble extension takes advantage of the neutral response but further extends the treble range of the headphone for a more intimate presentation with an enhanced 3D soundstage.