[gto88]

Looks like Dunu runs pre-order discount in China. RMB 2,999.

 

[Audio Fun]

I will try cp145 which I have in hand.
@Audio Fun also comment on EST112 bass as : The bass is on the light side.
For EST112, I will be focus on its EST driver performance, but if it can raise bass a bit, it would be perfect.

I used the cp100 for the first impression, I will play around with different ear tips and post the other impression soon. Indeed, I also hope the bass to be slightly more elevated, then it probably will be a end game IEM for the price.

 

[Redcarmoose]

Looks like Dunu runs pre-order discount in China. RMB 2,999.

That’s $30 off!

 

[SciOC]

That’s $30 off!

I pre-ordered from penon. Couldn't resist....

 

[gto88]

I tell myself, to wait for more impression......

 

[IEMusic]

Thanks to Super* Review

The FR graph closely matches the one Dunu provided.

 

[antdroid]

 

[Scubadevils]

 

[markel]

I tell myself, to wait for more impression......

I told myself that too and then I pre-ordered one anyway.

 

[gto88]

I told myself that too and then I pre-ordered one anyway.

Well, that works too. Looking forward to your impression..

 

[megioma10]

Is it me imagining thing or this unit have gotten a lot more pre-launch reviews then Zen?
Anyway I am interested in this unit, can someone tell me how does this compare to DK-4001, please?

 

[riverground]

Is it me imagining thing or this unit have gotten a lot more pre-launch reviews then Zen?
Anyway I am interested in this unit, can someone tell me how does this compare to DK-4001, please?

I think it’s also because of the Hype for Tribrids and the insane price DUNU has given these.

It’s really great.
That said, ZEN received a lot of love too.
A single DD in the sub kilobuck pricing that performs way above its class. Definitely deserves much more praise. I’m still working on my review actually. It’s just been quite a bit busy for me. But I booked a couple of days off this coming week so I could work on them.

But I’m excited to hear the EST 112 some time soon, I’m sure with DUNU’s track record, these will outperform its given price.

 

[Codename john]

I think it’s fascinating the battleground has shifted to value for money. Which is a win/win for the consumer . The exotic technologies and focus on tuning is an eye opener. Being a huge of Dunu since the 2000J days it’s great to see them pushing the envelope out and bringing exciting new ideas forward. The DK 2001 for the price is still a personal favourite of mine. The sound like a fine wine has matured gracefully. Bravo Dunu

 

[human bass]

That FR graph is damn impressive. Extended treble without any major peaks and dips, a hard thing to achieve

 

[dhruvmeena96]

DUNU evolves its venerated hybrid product line by adding a third form of transducer.

DUNU’s first hybrid earphone, DN-1000, released in 2013, smashed expectations for how much a hybrid earphone should cost. Eight years and nine hybrid models later, DUNU once again lowers the price threshold for a triple hybrid in-ear with an electrostatic driver.

As DUNU’s latest hybrid creation, EST 112 sets a new standard for an ideal mixture of promise, performance, practicality, and price.


The all-new form factor of the EST 112.

With the EST 112, DUNU introduces an all-new shell package with finely considered wear ergonomics.

Machined from lightweight aluminum alloy via a 5-axis CNC lathe and finished with a scratch-resistant gunmetal anodize, the durable shells encapsulate doubly reengineered driver circuitry. Stately, polished stainless steel faceplates cap off the package in a simple, yet timeless design.


Each structural component of the EST 112 has been precision machined from unitary blocks of aluminum alloy via 5-axis CNC mills.

EST 112’s 13.5 mm dynamic woofer works on a third-generation refinement of DUNU’s proprietary dual-sided beryllium coating. A revised diaphragm topology allows for a 9% greater effective sound reproduction area.

Combined with refinements to beryllium deposition, diaphragmatic mass is now 13% lighter than that of the previous generation.* The layered beryllium is now even thicker, with a finer, more regular grain pattern than ever before.

*Relative to the second-generation dynamic driver found in the DK-3001 PRO​

Additionally, a revised motor structure, inspired by our ultra-powerful ECLIPSƎ magnets, carries a 20% improvement in magnetic flux density at the coils. This augmented driver design, married with DUNU’s proprietary Air Control Impedance System (ACIS), allows bass and lower midrange frequencies to maintain their palpable speed, texture, and separation, along with improved distortion characteristics.


The second generation ACIS module in the EST 112 bolsters sub-bass response under 100 Hz.

Anchoring the all-important upper midrange and treble is a single Knowles mid-high balanced armature driver that has been the decades-long standard bearer for precision sound. Dual Sonion electrostatic drivers, inimitable in speed and transient response, actuate the smooth, elegant, and detailed highs every music lover craves.



Development work was largely spent on fine-tuning crossover points to optimize driver corner frequencies, resulting in a cohesive, neutrally voiced sound signature.



Usage-wise, EST 112 continues DUNU’s tradition of bundling a premium quality cable with the convenient Quick-Switch modular plug system (CN Patent ZL201821202295.0) as well as a generous fit kit of different ear tips.

EST 112’s designated cable is the DUW-02S, a Litz-braided version of the silver-plated (monocrystalline) copper DUW-02. Aside from the standard 3.5 mm TRS single-ended plug, a 2.5 mm TRRS balanced plug and 4.4 mm TRRRS balanced plug are also included.



At an MSRP of $489.99 US dollars, EST 112 breaks a price barrier for triple hybrid in-ears. EST 112 ships from authorized DUNU dealers worldwide, as well as directly from DUNU’s official website, on March 31st, with pre-orders available immediately.

For more information, please visit: https://www.dunu-topsound.com/est-112

---

Product Specifications

BRAND: DUNU
MODEL: EST 112
NET WEIGHT: 15 g

• FREQUENCY RESPONSE: 5 Hz – 40 kHz (HI-RES Audio Certified)
• IMPEDANCE: 10 Ω at 1 kHz
• SENSITIVITY: 110 ± 1 dB at 1 kHz
• TOTAL HARMONIC DISTORTION: < 0.3% at 1 kHz

DRIVE MODULE(S)

• Dynamic Driver(s): 3rd Generation 13.5 mm Driver with Dual-Sided Beryllium Coating (×1)
• Balanced Armature Driver(s): Custom Knowles BA Mid-High Tweeter (×1)
• Electret Electrostatic Driver(s): Sonion Dual EST Supertweeter (×2)

INCLUDED CABLE

• LENGTH: 1.2 ± 0.1 m
• MATERIAL: 4-Core, High-Purity Monocrystalline Silver-Plated Cable (DUW-02S)
• CABLE CONNECTOR: Patented Catch-Hold MMCX Connector
• PLUG CONNECTOR: Patented DUNU Quick-Switch Modular Plug System
• INCLUDED PLUG TERMINATION(S):
• 4.4 mm TRRRS Balanced
• 3.5 mm TRS Single-Ended
• 2.5 mm TRRS Balanced

OTHER INCLUDED ACCESSORIES

• Grey Balanced Tips (×3, S/M/L)
• White Core Tips (×3, S/M/L)
• SpinFit Tips (×3, S/M/L)
• Foam Tips (×1)
• Microfiber Cleaning Cloth
• Cleaning Brush
• DUNU DC-16 3.5-to-6.3 mm Adapter
• Airplane Adapter
• Carry Case (Navy)

The graph seriously looks very good
Also

That ACIS module looks like a transmission line but since back cavity of shell count as a space
It looks like a bass reflex.
And the TLine looks short

Maybe I am wrong on this, but since it's a long tube back vent, it should create dynamic yet speedy bass.

Nice work as always and this iem seriously looks worthwhile


Also, I think
Dunu
You guys should try ferrofluid driver in future on this same iem platform
I have tried some ferro and they are amazing