In one graph, the output of the pink noise signal with no EQ applied in the MathAudio plug in is compared to the output with the HD280 Pro filter active. In this EQ, there is a total range of about 11 dB between the maximum boost and cuts in the filter. There is a screenshot shown of an EQ I developed for my Sennheiser HD280 Pro headphones. Output from my laptop went to the ASIO driver for a Topping D10 DAC, and the analog output was input into a Focusrite Scarlett 2i2 with measurements taken with ARTA. These were generated by playing a pink noise signal in Foobar 2000 with the MathAudio Headphone EQ plug in enabled in the DSP manager of the Playback Preference. Since then I have made some measurements with the results shown in the attached files. I also said that I had not made any measurements to confirm this hypothesis.
In my earlier post on this thread ( #5), I mentioned that it appears that MathAudio Headphone EQ for Foobar reduces the overall output by setting the maximum boost applied in the EQ to a level of 0 dB. This is a follow up to my earlier post on this thread.
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