Just my unscientific $0.02 from personal experience: If you have a really good amp you will actually listen at a lower loudness level (if "you" are not stupid or deaf already). You will be able to hear all details of the music already at a lower SPL and don't have to crank up the volume knob to...

If what I hear in my set up with the HD800 and GSX-Mk2 is called placebo, then I like placebo:L3000:. Everybody should have some. :beerchug:

Discussing sound differences based on a you tube video recorded with a cell phone ?? <facepalm>

Another link in the MQA chain which doesn't make any sense to me ... They claim to correct any errors of the original ADC and the final DA conversion is following the MQA algorithms and the blue light comes on yeah! now it sounds good! All the processing of the original recording, the mixing and...

If they don't work it's obviously not a huge loss, let us know how you get them attached to the HD800.   I know forking out the dough for the orig. Sennheiser pads needs a tough grab of the wallet, as it might be trying to hide somewhere but honestly getting a 1.5k $ headphone, possibly...

The particular recording that gave me the impressions that they literally move the air, not just that the air transport the music was this one: And the format is the lowly red book CD. People complain about digital music being harsh. How does a piano sound if your are right next to it...

  ...yeah great, yet another new music format     There you go: it involves a different MASTERING.   And the yes, the few K2HD CD's (indeed red book format !) that I own, do sound fantastic. But the K2HD editions generally start with excellent quality recordings to begin with. What has...

Might have been me

I think you are confusing digital input sample frequency (up to 768 khz) with analog output (20hz to 20khz +/- 0.1dB)

LOL, a great recording for sure but I take it you are aware that it has been recorded Dec. 6-7, 1976 on a Nagra IV 1/4" 2 track? Not really DSD So this is a prime example of the capabilities of analog tape recordings when the technician knew how to capture live sounds at it's best.

LOL, respect for thinker to post the selfie and the chutzpah to radically modify the major comfort design shortcomings out of the "new float". If it is wearable for you now and sounds good, then congratulations.   On the other hand it clearly shows that this design is not a headphone, at...

a = analog d = digital c = converter  

B-flat Major, Op.18 No.6 F Minor, Op. 95 "Serioso" E-flat Major, Op.127   https://www.carnegiehall.org/Calendar/2017/3/31/0800/PM/Quatuor-Ebene/   I didn't have much experience with these works and I got drenched by the rain on the way from the parking garage 4 blocks away to Carnegie...

I'm gonna listen to Quatuor Ebene playing Beethoven string quartets in about 3hrs, live that is.

The parts that I used are listed under the pictures, e.g. cables: Carol 3x 10AWG, 3C SJOOW / Belden 83803,3x12AWG, plugs : Wattgate. No idea where to source equivalent stuff down under, the web is your friend I guess.