Moondrop Blessing 2

1 DD + 4BA configuration Hybrid three frequency division

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.

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.

Sweet treble, middle pitch, deep bass• Transparent and revive

The advantage of the "physical filtering + RC filtering" hybrid three-frequency architecture lies in precisely controlling the response of each unit, so that each unit can play an ideal level in its operating frequency band, and then achieve the frequency response index in accordance with the VDSF Target Response For Blessing2.

Specification

• 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 resin