[SilverEars]

the mod basically just seal the pad better no?

I guess somewhat in those lines, but it's on the other side of the pads, which is quite interesting in this case. How did somebody figure this out, and not Hifiman? lol

It's basically sealing the air better for more air flow. This goes to support that sub-bass does depend on seal somewhat. I guess that opening would leak air, and reduce pressure. But, it's quite interesting how this was found out.

 

[KCXT]

I guess somewhat in those lines, but it's on the other side of the pads, which is quite interesting in this case. How did somebody figure this out, and not Hifiman? lol

It's basically sealing the air better for more air flow. This goes to support that sub-bass does depend on seal somewhat. I guess that opening would leak air, and reduce pressure. But, it's quite interesting how this was found out.

Or maybe it was a deliberate design choice to nerf/differentiate the performance. Total speculation on my part but I assume they would know to do that if they cared to go after more bass.

 

[SilverEars]

The bracket on the ear side has a large gap so the volume is not sealed and this already weakly driven diaphragm can not properly excurse. This mod makes the driver behave much better overall (along with some rear damping because the headphone literally has none).

I thought the seal was just sealing that interior chamber so that there isn't a volume there for the air to flow into, but the tack material reduces the cross-section that the air can flow, and prevent the air from moving into the chamber. TH-X00 vs TH900 tells us that if you reduce the cross-sectional area of the inlet and the pad room, the bass increases.

 

[kyotousa]

Yah i guess that

The bracket on the ear side has a large gap so the volume is not sealed and this already weakly driven diaphragm can not properly excurse. This mod makes the driver behave much better overall (along with some rear damping because the headphone literally has none).

yah i guess that make sense.

 

[kyotousa]

I guess somewhat in those lines, but it's on the other side of the pads, which is quite interesting in this case. How did somebody figure this out, and not Hifiman? lol

It's basically sealing the air better for more air flow. This goes to support that sub-bass does depend on seal somewhat. I guess that opening would leak air, and reduce pressure. But, it's quite interesting how this was found out.

They most likely know, it's only $200 anyway. gotta minimize cost.

 

[kid vic]

mod to remove the bass roll of

This basically the Stax bluetac mod isn't it? Also, I'm 90% certain people have been doing this to the round cup Hifimans since 2012.
Definitely not hating, but I'm pretty sure this is a well known headphone mod.

 

[SilverEars]

This basically the Stax bluetac mod isn't it? Also, I'm 90% certain people have been doing this to the round cup Hifimans since 2012.
Definitely not hating, but I'm pretty sure this is a well known headphone mod.

Really? I've not heard of this for the round cup Hifiman. Don't recall discussion of this on the 500 thread or even for HE6. However, I do recall hearing something about a gap in HE1000V1, and closed (or reduced?) the gap with V2. Somebody claimed this gap caused distortions.

I think it's with the HIfiman's later designs (after the classic era?) the way the drivers are configured that may have some sort of gapped area between the driver and frame.

This the classic round cups, and I don't see any large gaps on there. Certainly not the 5XX.

 

[elquixote]

This basically the Stax bluetac mod isn't it? Also, I'm 90% certain people have been doing this to the round cup Hifimans since 2012.
Definitely not hating, but I'm pretty sure this is a well known headphone mod.

This is correct, there are multiple threads on a few sites including this one that discuss this mod for the he-6.

 

[SureSh0t]

Or maybe it was a deliberate design choice to nerf/differentiate the performance. Total speculation on my part but I assume they would know to do that if they cared to go after more bass.

"Never ascribe to malice that which is adequately explained by incompetence"

 

[Kammerat Rebekka]

I had a feeling this was bound to happen...I mean this hobby is chuck full of peeps that like to fiddle around with their toys
The more I think of it the more reasonable it sounds that the first gen Hifimans indeed were made by ‘someone else’..or at the very least made before the company got greedy...like every other big business out there. The fact of the matter remains: those OG drivers are far and away the best thing Hifiman ever sold...and we’re most likely never going to see them in a headphone again (maybe with the exception of even pricier coconuts with inferior designs to the old..ahem HE6se).

 

[sennfan83261]

This basically the Stax bluetac mod isn't it? Also, I'm 90% certain people have been doing this to the round cup Hifimans since 2012.
Definitely not hating, but I'm pretty sure this is a well known headphone mod.

Hey, at least the HE5XX shares something with the old-school Hifimans, a proud heritage of putting play-doh inside the cups. The legend continues...

 

[kid vic]

Really? I've not heard of this for the round cup Hifiman. Don't recall discussion of this on the 500 thread or even for HE6. However, I do recall hearing something about a gap in HE1000V1, and closed (or reduced?) the gap with V2. Somebody claimed this gap caused distortions.

I think it's with the HIfiman's later designs (after the classic era?) the way the drivers are configured that may have some sort of gapped area between the driver and frame.

This the classic round cups, and I don't see any large gaps on there. Certainly not the 5XX.

Here is someone talking about it in 2016 with the HE6. And in regards to Stax, this is from last year but I know for a fact people have been doing this for awhile. I don't feel like hunting down more posts but @elquixote remembers and I'm sure a few more old timers will know it too.
This isn't a new mod (no offence to FastandClean), interesting that it was reawakened like this though.

 

[SureSh0t]

Here is someone talking about it in 2016 with the HE6. And in regards to Stax, this is from last year but I know for a fact people have been doing this for awhile. I don't feel like hunting down more posts but @elquixote remembers and I'm sure a few more old timers will know it too.
This isn't a new mod (no offence to FastandClean), interesting that it was reawakened like this though.

I don't think it was implied to be new, just effective. Nor do I think originality is a pertinent concern when modding headphones.

 

[FastAndClean]

@FastAndClean

Nice! Looks a little more v-shaped too though. How do they sound?

that is from Drop page, i posted it here for folks who are not reading there

 

[jasswolf]

Seems promising... looking forward to more comparisons with the Sundara and the BLON B20.