This seems a new headphone....or just TYGR 300R? Source:https://global.beyerdynamic.com/100-years-beyerdynamic

Wider bandwidth "maybe" means lower TIM,Transient Intermodulation distortion. But a switch about some term True Transient Technology which seems more like marketing language.

It's just use the specific baffle/cabinet resonate as simple acoustic filter, an calculated design.

Ok, a 3khz resonator, just similar to K812.

No impedance or phase curve?

So the TTT switch is simply a low pass filter? oh....

You need more gain than to drive K812 properly . This is K812's FR with low gain K812's FR with high gain amp

K812 is truly the statement headphone by later AKG, but..... 1. Lacks balanced connect option, when most "hifi headphone amp" go for balanced, its become a problem. 2.Head-Fier actually not so like so call "neutral" timbre, in fact, most of us prefer slight rising treble for transients and...

It seems a simply design reduce airflow noise and backwave guider/smoother.

Seems the center dome takes more part than 812's ,and bigger bass port. Different corrugations around the ring part. Interesting, so why focus on low THD marketing language? This would makes the measurement gangs got goods on this headphone.

Seems interesting enough, maybe a Zobel network?

Yeah, there are so many Hi-End headphone nowadays, So what's made the composer different/special? I don't think this is merely audiophile non-sense.

As a headphone (luxuries) price tag 2500 euros, Austrain Audio really need some sales point / marketing language. At least show some exploded view of the 49mm driver, and try to explain what's "True Transient Technology",and why it matters.

Remove the absorber disc would ruin the tone of 3rd. Just take care of earpad, that't is the really problem need too long time aged. (remove earpad and you will see the bass-reflex vent, that's the key point.)

As a new Evo user, I see the qobuz X etymotic special offer page , does someone knows where i can find the offer code? Thanks.

Somehow i feel his criticism too picky. Yes, we all knows the law of diminishing in here.....

My simple Evo review Pros + Clarity + Imaging + Smooth and pure timbre + Rather Good value compare mainstream IEMs Cons - Not so easy to fit/seal properly - In some case, transient not so vivid, lacks some excitement.* *transient speed is good, but to my taste, somehow too well-controlled...

Are we just got first Evo's structure picture?

Try the final Audio nozzle adapters with e-type tips and comply t500, the sound change is fun. E-type tips would toward more V shape presence, T500 tips would toward darker and low-mid focus /relax sound. IMO, both of them sound not as balance as 2 flange tips, although easier to fit and much...

Sony is big company , but their acoustics engineers not more specific than Etymotic's , their advantage is the cost of material and marketing.

That would make things more complicate, beside need total redesign crossover. DD and BA have rather different distortion model and group delay. I'm not say complicate things is bad, but complicate things usually more expensive.:smirk:

I would say Andromeda and Evo are rather kind of different IEM. They takes very different point view on damping. Depend on differnet system, Evo would sound "dull" when Andromeda sound vivid, or Evo sound clarity but Andromeda sound somehow "loose".

All i can say is Evo loves voltage. So use the mid/high gain setting in your portable amp or DAP,and got a sound-field can compare HD650.

Its easy to answer: Conca lock style shell prove more room for new design 3-ba module. And MIM SS balanced robust/durability and cost. Why not aluminum or titanium? because accurate enough CNC is expensive, Some manufacturer would take this as "additional value". But a serious acoustic-design...

I'm not refer the Moondrop X-01 claims "inspired" by ER4 ,that's sort of marketing,because there are also solid group fans of ER4S in China. (And they take a nickname of ER4 "Little 4") But the Yu9 audio's "ER4 clone" still sales on taobao now. Sorry for off topic.