- Mar 31, 2011
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
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
- 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)
- 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
- 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)