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MoonDrop Variations IEMs


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Product SKU: Variations


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Product Details

Audio46's Opinion

MoonDrop's Variations are amongst the most formidable tribrid IEMs you can find in the $500 price tier. Here at the store, the Variations are one of our favorite in-ear monitors from Moondrop. With a tuning that conforms nearly perfectly to the 2019 Harman target, Moondrop's Variations have a smooth and pristine balance with a moderate touch of extra sub and mid bass that punches through listens. We recommend these for anyone in the market for a neutral IEM with a specialty in performing cleanly layered dissections. The rather apparent choice for MoonDrop Blessing owners who want the next level in imaging, speed, and detail retrieval.

↓ Details provided by MoonDrop
(Specifications and appearance of this product are subject to change without notice)

MOONDROP 1DD+2BA+2EST Tribrid IEM with Detachable Cable

Diaphragm dynamic driver 

Diaphragm dynamic driver is also called electric electro-acoustic transducer, and its manufacturing principle is that it can produce displacement by energizing conductor in a constant magnetic field.

Balanced armature driver

Balanced armature driver is mainly assembled by vibrating ferromagnetism and coil parts fixed in the magnetic circuit. When the alternating current passes through the coil, an alternating magnetic field is generated, which causes the force of the armature or the iron diaphragm in the magnetic circuit to change and vibrate and produce sound.

Electrostatic driver

Electrostatic driver is also commonly referred to as the capacitive electroacoustic transducer. Its diaphragm is driven by the repulsive force of the electrostatic field to produce sound.

Seek for the perfect
compatibility of Tribrid IEM

Since the application of electrostatic driver for in-ear earphones, products with electrostatic units have emerged one after another, but they have been criticized for reasons such as "unacceptable tone" or "difficult to drive".

The development of Variations adopts our previous experience in the development of EST + BA hybrid and EST + DD hybrid earphones. With 3D printing, a precise physical filter structure and frequency divider circuit are manufactured to produce excellent amplitude-frequency response and phase-frequency response. Conveys the perfect harmony of the sound and imaging.

Ergonomic fit for the ear canal
Skin-friendly texture design

Variations continues the ergonomic design of multi-unit composite earphones, which can fit the human ear canal, making it comfortable and ensuring the sound quality.

The cavity is made of medical resin 3D printing. Hand polished and finely sandblasted design for skin-friendly surface, which not only has an excellent texture, but also fits the ear canal more comfortably. It looks elegant when the fine sandblasting stainless steel panel fits with the frosted cavity.

Structure and Drivers

  • Matte stainless sandblasted panel
  • Sonion high performance dual electrostatic drivers
  • 10mmLCP liquid crystal diaphragm dynamic driver
  • Softears-D-Mid-B customized
  • midrange balanced armature drivers
  • 0.78mm universal detachable interface
  • Medical resin 3D printing complex filter structure cavity
  • Knowles acoustic damper

Bass driver: 10mmLCP liquid crystal diaphragm dynamic driver
The Bass driver adopts the newly developed 10mm liquid crystal diaphragm composite copper inner cavity diaphragm dynamic driver. The liquid crystal polymer liquid crystal polymer diaphragm with a thickness of only 9um has balanced compliance and damping characteristics, and it is matched with the lightweight CCAW voice coil and The brass composite inner cavity brings powerful and freely retractable bass.

Midrange driver: Softears-D-Mid-B customized  midrange balanced armature drivers
Dual balanced armature drivers are customized by Softears, which is not only transient and excellent in detail, but also exhibits amplitude-frequency characteristics that highly meet the requirements of Variation design, which complements the DD and the EST drivers.

Treble driver: Sonion high performance dual electrostatic drivers
The Variations treble driver adopts Sonion's new high-power version of one-to-two compound double electrostatic tweeter, which brings high-efficiency, dynamic, and excellent resolution to the high pitch.

In order to achieve excellent frequency response and consistent phase across all frequencies, Variations inherited and improved the hybrid crossover design of Blessing2. Through the 3D printed precision acoustic channel combined with damping materials to achieve low-frequency physical band-pass filtering and medium-high-frequency low-pass smoothing filtering, coupled with accurate RC low-pass filter circuit, high-pass filter circuit and equalization circuit, Variations can show very ideal frequency response and phase indicators.

3D printed physical filter structure + RC filter frequency divider circuit

Working with Master 3D Printing Supplier

In order to accurately achieve the complex physical filtering intermal structure of Variations and avoid the acoustic structure error, an ultra high-precision 3D printing process is needed.

So we cooperate with the well-known 3D printing supplier "Heygears Technology" to apply its mature high- precision DLP 3D printing technology and use imported medical-grade UV resin to produce high precision, high transparency, high hardness, and accurate complex cavity

Excellent acoustic performance

Advanced transducer unit and rigorous acoustic structure design, coupled with carefully polished physical filtering and crossover circuits, make Variations outstanding results in both linear and nonlinear distortions.

Frequency Response is tuned based on MOONDROP VDSF Target Response (calculated by combining B&K HATS diffusion field HRTF and room reverberation curve) to bring a true and accurate longitudinal sound field and present the sound quality that can accurately restore the information contained in the recording.

Highly consistent full-frequency phase

Phase exhibits a high degree of uniformity across all the frequency, eliminating the common connection problems of multi-unit tribrid earphones, making the three-frequency sound fit accurately, and the sound field image is true and accurate.

Low non-linear distortion, accurate and clean sound.

With the reasonable unit configuration, the total harmonic distortion of the whole frequency is less than 1%, and the odd and even harmonics are evenly distributed, and the overall tone is harmonious and clean.

  • Positive and negative coaxial structure
  • 6N purity single crystal copper
  • ​Independent insulation cable core

0.78mm universal detachable interface

Standard PCC coaxial single crystal copper detachable earphone cable

Adopting 0.78 dual-pin universal replaceable earphone cable as always, allowing users to replace their favorite cable to meet their needs.

And it also comes with PCC coaxial single crystal copper earphone cable, which not only adopts coaxial structure and 6NOCC single crystal copper to ensure excellent sound quality, but also can replace the attached 3.5mm single-ended/2.5mm balanced/4.4mm balanced plug.

Variations Specifications

  • Frequency Response: 9-40kHz (IEC61094,Free Field)
  • Effective Frequency Response: 20-20kHz (IEC60318-4,-3dB)
  • Sensitivity:  118dB/Vrms @1kHz
  • Impedance: 15.2Ω @1kHz土15%
  • T H D: < 1% @1kHz
  • Drivers: 1DD+2BA+2EST
  • Bass driver:  10mmLCP liquid crystal diaphragm dynamic driver
  • Midrange driver: Softears-D-Mid-B customized midrange balanced armature drivers
  • Treble driver: Sonion high performance dual electrostatic drivers
  • Cavity material: stainless steel + resin

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