Moondrop Blessing 2 1DD+4BA Hybrid Technology In-Ear Monitor Earphone
MoonDrop Blessing 2
The physical band-pass and low-pass filtering of the sound duct structure relying on 3D printing to form a hybrid three-frequency structure, which is divided by the RC power frequency division.
Dual Knowles’ SWFK high-frequency balanced armature unit is responsible for high-frequency.
A pair of exclusive custom IF units are for mid-frequency (to achieve VDSF Target Frequency.
Response)
A 10mm dynamic coil unit of a paper cone composite diaphragm is for low-frequency.
All for the transparent sounds with deep bass, middle pitch, and sweet treble.
Scientifically effective and unpretentious configuration
The configuration of 1 DD and 4BA efficiently utilizes the acoustic characteristics of dynamic and armature hybrid. Unlike the blind stacking together, Blessing2's configuration is simple, reasonable, and efficient. A custom full-frequency composite balanced armature is responsible for the mid-frequency, and it is used in the 500Hz-80004 frequency band that meets the VDSF Target Response in conjunction with the circuit and filtering conditions, which guarantees the quality and dynamic density. For the high-frequency, this earphone adopts the American Knowles SWFK with low distortion and excellent high-frequency bandwidth to match the mid-frequency sensitivity. With excellent low frequency response, quality index and hearing sense, 10mm diameter paper cone diaphragm dynamic coil unit is used for low-frequency, and its use efficiency at low frequency is much higher than any of them.
3D printed high-precision physical filtering sound duct structure
The frequency division method for Blessing 2 includes physical band-pass filtering and low-pass filtering. Band-pass filtering is used to adjust the response range of the low frequency and mid-frequency, and low-pass filtering is used to limit the Q value of the mid-frequency and high -frequency.
With complex structure, its design architecture is effective. To achieve the ideal index, the complex sound conduit structure requires thousands of experiments and modifications, and considerable accuracy
Working with Master 3D Printing Supplier
In order to accurately achieve the complex physical filtering internal structure of Blessing2 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-3
SPEC:
MOONDROP Blessing 2 In-Ear Headphones
Impedance: 22 Ω @ 1kHz (± 15%)
Unit configuration: 1DD & 4 BA each side
Frequency response range: 9-37KHz
(1 / 4-inch free-field microphone, -3dB)
Treble unit: Knowles SWFK
Midrange; Softears D-MID-A
Bass: 10mm paper cone diaphragm coil
Effective frequency response: 20-20KHZ
(EC60318-4)
Quality control range: ± 1dB @ 1kHz
Sensitivity: 117dB / Vrms @ 1kHz
Change connector: 0.78-2Pin
THD: <1% @ 1KHz
Shell technology: 3D printing of imported medical resi