It's most likely a trained behavior thing. If most of your experience of music is from your HD560 unaltered, you are obviously going to think things should sound that way. Which is really fine, as long as you like it. BUT what all those targets are trying to simulate is how a perfect planar speakers would sound in their version of human head with ear canals would sound like if it were placed in the middle of acoustically neutral(?) room. Also, don't take those AutoEq as some sort of end all be all type thing. For one there are many different targets, and at least two very well stocked repository of AutoEqs. One thing that bothers me is some of them AutoEqs have frequency orders all jumbled up. First thing I would do with those is download the parametric Eq file and read it in to EqAPO. Then open them up in a separate tab and reorder them in either ascending or descending order. Then start looking at what each one is trying to fix. You may find some not so useful or some that make no sense at all. Once I find a target AutoEq I like, what I do is do aforementioned steps and then leave what I think is good. At this point you are 80 percent done coz you found the target feels natural to you from upper Bass to Lower Treble. At this point, I start listening to a set of tracks I listen to a lot, so I know what to listen for. Youtube mix track works well, as long as you have a plugin, that sets all the loudness to equal level in your browsers. Then I decide how much bass low-shelf I need to apply at around 120Hz. Do I need more or less??? Then I listen to high treble range and do the same but with high-shelf at around 8-10kHz, sometimes even up to 12kHz. Depending on the headgear. Assuming you have pre-amped all your eqs down to 0dB max and you are on PC, you actually have about 3dB headroom. And the very last thing I do is actually apply high-pass at 10~30ish Hz to prevent my VU meter from going nuts and make it easier to drive my headgear. Also, depending on headgear spec, I also apply low-pass at around 22~24kHz coz we don't have animal hearings. :D