No. Neither of my Sennheisers are modded. That's a good point. I'll have to think about the HD-800s. I'm not too keen on "modding" brand new $1500 headphones just yet... I think that I will need to work up to that.
Out of curiosity, which mods are you referring to that made a difference for you? Seems like there are a few now that I am looking....
Thank you for putting that out there.
For my HD800 I did the reversable anax mod. Just requires you cutting up stuff and pasting it. You can use various materials. The two published versions have foam, rug liner and felt in some combination (pick two of three). Personally, I did thin cork + thin rug liner + thin felt. Then I removed the dust cover. Cork at bottom, felt at top, rug liner in the middle. I used the 'warmer' version for the cork and rug liner, and the more 'neutral' version for the felt. Don't forget the triangle part. Here's
a link to a video on the process. Huge difference- beforehand I thought the HD800 was basically unlistenable (which led me down this path). Now, I love them to bits. I was seriously thinking about selling the HD800 and buying the S; but right now that's not necessary at all. The HD800 went from last in my stable to first with these mods.
PS, every HD800 is different, and everyone has a different pairing (amp, etc) as well as preferences. You may need to experiment with different thickness, different materials, different shapes, leaving the dust cover on vs off, and so on, until you find something that fits your ears. And it's all reversible btw- just remove the cutouts, and you're done.
As for HD650, I did the two mods
here: after removing the foam at the front, though, I used my leftover cork and rugliner (same order, cork at the bottom and rugliner on top) and cut a replacement 'foam' and put a quarter in the middle to cut out a hole for the driver to 'breathe'. (I did this partly because I had some leftover materials, but also because I did not want to do a irreversible mod). Finally, I also did the dynamat mod except I used blutack instead because I had that readily available. I'm sure dynamat will work better but I'm lazy to go buy some, and blutack still dampens vibration somewhat to help the bass.
Note: after I wrote this, some of my links were removed from my post for 'myriad reasons (some of which you may or may not be familiar)' (I'm just quoting). So if you wish, you can google these mods and find the images yourself
