HD800 (S) Ultimate Mod

This is nitpicking,
As the measurements are of other rigs are all similar, and from my observations most differences among rigs is the FR variations above 5k which vary but still with similarities.

The impulse is more telling, as also the CSD as they pertain to other aspects, like speed and decay which are not system dependant.

Anyways, imagine an HD800 with low end weight of a planar and sounding more like a Susvara without the planar sound.

 

Not your fault, mate.

By the way, does the dekoni fenestrated reduce resolution, imaging, or other technicalities, compared to stock pads?

 

No only the bass is slightly reduced.

Here is a pic on mine with Dekoni pads (in front).

 

Looks like you have calmed down a bit. You keep saying you have solved the hd800, but your measurements don't show much of that.

1.The frequency response of your "modded" pair still shows the massive 4kHz suck out of the hd800.

2.The CSDs cut off at 400Hz which fails to show the "planar bass" you pretend to have achieved. Proper planar extends linearly down to 20/30Hz, I don't see any of that here.

Moreover, while ultrabike told you right away that something was off with your impulse response and distortion measurements, you have presented nothing to address it, even though you said yourself you would.

My post was a reminder of that. I assume you can get away with hand waving in other forums, I would like to think this is not the case here and that we have a higher standard.

I applaud the commitment to get more people to hear your mod, but if you can't provide proper measurements, I would highly suggest you get in touch with someone who can.

 

TMI

 

Here is a run-down of the measurements I posted about this current mod which shows how it supasses other mods.
View attachment 15461
**Edit TMI too long to keep reader attention.

 

I personally cant wait for the new mods name to be given. Is "super most ultimatest bestest moar better mk1.69" already taken?

 

Forgot the CSD:

Cheers.
Edit: old CSD I will update properly as suggested in future post.

 

**Edit TMI**


It will be finished in coming months and will be called the HD800X
Details & specs will follow.
Currently dealing with tunning.
measurements changed.
reference headphone to compare will be the Susvara, so it will be hard task but I am getting closer.

 

I realize I need to do all these things you say to satisfy everyone.
I was unable before, but I have two new drivers coming in so I can make proper before and after measurements.

I posted my REW raw data so CSD settings could be adjusted to your liking, but it been up for months without anyone commenting so I took it down now.

I use my settings for quick tunnig adjustments and most anything below is worthless data to me and I don't see the value in it.
Everyone had access to the REW data for months now.

My tunning is not finalized

I have not done simpleton mods like muting or dampening of my upper range, I am truly boosting the lower region & altered upper.
I have proper measurements accessable in REW file I just took down due to no comments.

 

**edit** TMI

 

You know the thread: https://www.superbestaudiofriends.org/index.php?threads/measurement-setups-post-your-rig.141/

@ultrabike 's CSD settings are on p.1, @sorrodje 's & @Serious 's on p.7. See also @philipmorgan 's measurement protocol on p.6 (post #106).

As @purr1n said, it's good to set the floor around 30 dB down from the average or from interesting ridges or troughs in the low to mid-treble range to illustrate ringing in evil areas (see his CSD tutorial).

Edit: Also, if the 'back wall' of your CSD is a bad match to your FR plot, check your impulse response - a big apparent pre-ring, likely caused by the ADC not being well clocked, will screw up the CSD. Minimize this by using a short sweep (256k) to make the CSD but a long one (1M) for the distortion display, which will otherwise look like hell (credit to Serious for this).

 

Hello all I have been away relocation yet again to the Bronx.
Anyways since I do not have my latest mod finished and properly measured, I am posting this current mod to show it was more elevated in low end than the HD800S signature, and surpass both the HD800, HD800S in resonance reduction.

Lets look at the 800 CSDs posted here and compare them to mine (they are all past 30db):

HD800:

See the ringing at 6-7k..

Now look at the 800S:

Nice but still has some ringing.

Now look at mine from this thread:

Clean in area of no ringing, and no large peaks.
No need to reduce trebles if there is no ringing...
Just an extended trebles elevation for details, air, and brilliance, while also having an elevated low end, which my CSD went further down to show.(200hz instead of 500hz).
Mine looks different at left because of extension, but they all start to rise at 700hz point so I would assume similar decays if shown, but who knows.

The only problem with my CSD, is going to 5 milliseconds instead of 3, but you can still see that most decay dies down way before 1 milliseconds, most before half a millisecond.

Also, other type mods (rug liners, foams, or center inserts) have a perception of a more closed in Soundstage, partially by killing the 800 signature trebles, but that is IMHO.

Anyways, just wanted to point out improvements and I plan my next version to have much smoother FR while elevated low end and zero ringing.
Hopefully in next months coming will have some measurements to go over.

 

This is a later mod, not the one in beginning of thread, so I continue changing the point where I was at in FR:

But I anticipate a smoother one next.
I purchased new driver elements so I can do proper "before-and-after" measurements, which I will also post the actual REW file for anyone to adjust views as they see fit.
ETA should be within the next two months.

 

Ok, not easy to match, but here you go:

 

forget that one.
Here is 2ms CSD.


here is the FR for that CSD:

 

I can’t be the only one here that’s skeptical in a trying-be-non-offensive way. What butchery/sorcery have you done to that poor ring radiator?

 

I moded it with my new design I deal with different approaches like
Pressure modality.
Torroidal/ poloidal force vector
The Torus - Dynamic Flow Process
vortex structures in a flowing stream..