I'm running into a problem with my HD650. I'm getting rid of some of the peaks but it doesn't sound as good with music. More like i've added the infamous "veil" back to the sound.
Could it be that some of those peaks are meant to be there. I'm not talking about the ear canal resonance around 7.5 kHz (different for everybody) but the peak around 2.5 kHz.
Check out the graph on this page:
HeadWize - Article: Taking Sound In Another Direction by John Sunier
These are the suggested "Biophonic" EQ settings that are meant to make headphones sound more natural, like speakers in a room. If we EQ flat based on what we hear, are we getting rid of these peaks that were intentional by the manufacturer?
Based on that graph, even a slight boost (+2 db and not the +8 db we are hearing) in the ear canal resonance frequency is a good thing.
This might sound too good to be true, but I'm not exhadurating when I say I think I found the holy grale EQ setting for hd650.
I did NOT notice this in Sinegen strangely enough. I was watching fellowship of the ring (like I have many times) and decided to try and get rid of that overagressive voice resonance that you get so easily in that movie at higher volumes. I could get treble to go down to an okay level, but that harsh resonance of the voice made the sound very unpleasant in that particular way.
So I decided to try and get rid of that Resonance. I tried small then did somthing big and BINGO. I hit it spot on! Then I just kept lowering the decibel and lowering and kept on going to almost -10 db in a Hz I have never heard of for hd 650.
Here is what it looks like:
879 Hz is the frequency! at 0.4 width.
It made the:
Bass more distict, clear, powerful and dynamic.
Voices clear and defined.
Instruments and detailed sound sound clearer.
It made such a big difference I'm a bit stunned. I almost feel a bit silly for even doubting TS ideas or that they wouldn't make such big of a difference.
I must say, without that 879 dip I was pretty impressed. Now I am stunned by the difference. I will never go back!! It sounds awesome. I use the same EQ for both movies and music now btw!
I believe this should have been in the opening post though aswell since I would never have found this out without this coincidence of my mind instinctively wanting to get rid of that over resonance.
Some people have had trouble with the sound getting a bit more muffled or whatever. I had that problem too. But now it is crystal clear. I might tweak the treble peaks a bit more though. In fact I would be interested in what all this sine wave and pink noise file is and what to do with it, so I can tweak treble peaks more perfectly.
Anyways, thanks for this TS. It makes a HUGE difference, and I'm now officially a believer of this for sure.
edit: I might add that I use little dot mk iii and the powerubes + voskhod (see tube rolling thread) and xonar dx.
Edited by maxdot - 3/7/12 at 7:30pm