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Highlights
- dBC-s Dual Sides Bone Conduction System
- Carbon fiber + gold foil
- Quadbrid construction
Reviews
Unique Melody MEST MKII Review — Headfonics
"If you like an overall full bodied sound with good bass quantity as well as quality, and that presented in a warmer and smoother way, then the MKII is the IEM for you. The MEST MKII is easy on the ears, very musical and very enjoyable and it has a strong enough technical excellence to please the big crowd. "
Unique Melody MEST MKII Review - Headfonia Reviews
"MEST mk2 will be very very difficult for any IEM to topple when it comes to details and clarity. Even pricier IEMs will not harm its reputation.
If you have the budget, this is the IEM to get."
Unique Melody MEST mkII : Get one ASAP | The Headphone List
specification
| Product | MEST MKII |
| Driver Types | Dynamic + Balanced Armature + Electrostatics (EST) +Bone Conduction (Dual Sides Bone Conduction), 4-Way Quadbrid |
| Driver Counts | 7+1(7 Traditional Drivers + Dual Sides Bone Conduction System) |
| Sensitivity | @1KHz 112 dB |
| Frequency Response | 20Hz-70KHz |
| Cable Sockets | 2-pin flat |
| Shells | One Piece Carbon Fiber + Gold Foil |
| Crossover | 5-way crossover |
| Resistance | 12.3Ω |
| Driver Configuration | 1 Dynamic Bass Driver + 2 BA Mid Drivers+ 2 BA Treble Drivers +2 EST Ultra High Drivers + 1 Full Range B2 Bone Conduction Driver |
| Cable | UM Copper M2 Cable Custom Cable |
| Ear Tips | AZLA SednaEarfit Xelastec SS | MS | M |
MEST vs. MEST MKII
dBC-s in MEST MKII vs. Bone conduction drivers in MEST - Both the sensitivity and the response range are significantly improved.
The MEST MKII uses a double-sided piezoelectric Bone Conduction DriverThe driver is located between two support plates. In the center of the driver is the vibration plate, which is coated with ceramic on both the front and back.
The Bone Conduction Driver now has a larger contact area with the conchae (double-sided contact with the conchae), which significantly increases transmission efficiency and sensitivity.
The dBC-s has an effective frequency response of 500 Hz to 20 KHz, which results in a refinement of the entire frequency spectrum.
One-piece carbon fiber shell
The effectiveness of the Bone Conduction Drivers depends on the coherence of the fit and skin contact. MEST MKII uses an ergonomic shell design for universal shells, which significantly improves compactness. The shell itself is also smaller and lighter.
Driver configuration design
The MEST MKII utilizes a quad-bridge design. A dynamic driver is used for bass, which typically delivers a more natural bass response than balanced armature bass solutions. However, balanced armature drivers have advantages in resolution, especially in the mids and highs.
Based on the DD and BA hybrid design, we've added two electrostatic drivers for ultra-high treble extension. Finally, the newly redesigned dBC-S Dual Sides Bone Conduction System refines the entire frequency spectrum. The MEST MKII's frequency range can reach up to 70 kHz.
The improved metal openings
The improved metal vents with the brand new design ensure that exactly the same amount of air flows from the rear into the driver housing, unlocking the full potential of the dynamic driver.
Working principle of bone conduction
The bone conduction drivers consist of metallic vibration elements coated with piezoelectric ceramic. The ceramic layers bend the metal vibration elements, generating micro-vibrations in response to changes in the input AC voltage.
More comprehensive hearing experience of bone conduction and air conduction
The sound of bone conduction
When we eat a cookie, we hear it crack because the vibrations are transmitted to our inner ear via our teeth and skull. We can hear bone conduction sounds when we eat, drink, or scratch our heads.
Early application
Ludwig van Beethoven, the famous 18th-century composer who was almost completely deaf, discovered bone conduction. Beethoven found a way to hear the sound of the piano through his jawbone by attaching a rod to his piano and pressing it together with his teeth.
MEST MKII uses bone conduction technology to transmit a specific frequency range by vibrating the inner parts of the ear cups. The sound bypasses the nozzles and travels directly to your inner ears through contact with the skull.
Path: AV signal - bone conduction driver - skull - cochlea - auditory nerve
UM copper M2 cable
Made of copper, excellent flexibility, metal Y-splitter and chin slider. 4.4 mm connector added to the options.Environmentally friendly coating material used
| Coating | PVC |
| material | OCC |
| Gauge | 24 AWG 4 cores |
| Sound quality | High |
| Flexibility | Middle |
| Anti-noise | High |
| Level | High-end |
Packaging and accessories
- Headphones: One pair of MEST MKII
- Cable: UM Copper M2 special cable
- Case: UM "ESP" Double Drawer Black Gift Box
- Carrying case: Dignis Premium Blue Leather Case.
- Warranty card: Warranty card
- Other: Grey premium cleaning pad
- Ear tips: AZLA SednaEarfit Xelastec SS／ＭS／M
- +Silicone S／M／L
- Storage clip: storage device
