[Currawong]

The Current State of Graphene in Commercial Loudspeaker Products
By Robert-Eric Gaskell Ph.D.

http://www.loudspeakerindustrysourc...raphene-in-commercial-loudspeaker-products-93

This helps clarify a few things, primarily that the drivers are graphene oxide.

 

[Slater]

This helps clarify a few things, primarily that the drivers are graphene oxide.

It was definitely a worthwhile read.

I am a little disappointed to find out that the graphene oxide used in the Ora drivers only has 10% of the stiffness of pure graphene.

With that said, I totally understand that the technology is in its infancy and that we are all early adopters on the cutting edge of the technology.

I’m sure 20 years from now, we’ll look back and view these headphones as the equivalent of a horse drawn carriage compared to whatever graphene technology exists in 2040.

 

[b0dhi]

the graphene oxide used in the Ora drivers only has 10% of the stiffness of pure graphene.

And the resulting diaphragm is even lower - 6.5%, which is lower than aluminium. I think they've reduced the thickness of the diaphragm or something because in earlier articles the spec was double that - 130GPa (example).

At this point I have to wonder how closely production performance will match the tests shown in the Kickstarter/Indiegogo, which showed amazing, near-ideal performance.

 

[AlwaysForward]

waiting on the mid month update:

 

[Slater]

For those who haven’t seen the update, we’re all supposed to receive our Oras in January!

 

[mbwilson111]

For those that haven’t seen the update, we’re all supposed to receive our Oras in January!

You are joking right?

 

[Slater]

You are joking right?

Nope, serious as a heart attack!!

47 days and counting!! That is, assuming the shipping company doesn’t have some unforeseen disaster.

 

[BunnyNamedCraig]

You are joking right?

Whose going to hold their breathe with me??

 

[AlwaysForward]

I’m hype. Address updated and counting down the days.

Let’s headphones nerd recap here:

They’re tuned based on the Harman curve. But warmer mids and a little extra bass oomph. Acoustics of the pads/housing tuned & optimized.

Fast AF, Efficient AF: Closer to Beryllium than Aluminum in performance metrics (Young’s modulus & figure of merit)

High onboard power, quality DAC, latest Bluetooth -AND- USB-C Audio
...OR -PASSIVE- analog input for your DAC/AMP/DAP desires

“All screws, no glues” - you can repair and replace with normal household tools, including standard available batteries

I’m hype gentleman

 

[human bass]

If they manage to have a beryllium like sound without the metallic harshness, i will be very happy.

 

[Midgetguy]

I’m hype. Address updated and counting down the days.

Let’s headphones nerd recap here:

They’re tuned based on the Harman curve. But warmer mids and a little extra bass oomph. Acoustics of the pads/housing tuned & optimized.

Fast AF, Efficient AF: Closer to Beryllium than Aluminum in performance metrics (Young’s modulus & figure of merit)

High onboard power, quality DAC, latest Bluetooth -AND- USB-C Audio
...OR -PASSIVE- analog input for your DAC/AMP/DAP desires

“All screws, no glues” - you can repair and replace with normal household tools, including standard available batteries

I’m hype gentleman

Oh, they said the batteries are replaceable too? I missed wherever that part is, that's very nice indeed. Batteries don't last forever, rechargeable or not. It's nice to know that when they aren't able to hold a charge well many years down the line, you could just open it up and put in new ones off the shelf without too much fuss (hopefully).

I ain't holding my breath on the delivery, woulda died 20,000 times over.

 

[human bass]

What caught my attention was how thick the pads are. Guess they really did their homework on comfort.

 

[Matez]

What caught my attention was how thick the pads are. Guess they really did their homework on comfort.

Looks like it, yup.

 

[Chimmy9278]

Very interesting product, don't know if these will ever become a trend or of common production, only time can show.

 

[human bass]

Waitin, watchin the clock...