15.4mm Hifi Mx500 Headphone Speaker 130ohm Speaker Headset Unit Driver Earphone 107db

Flat headphone speaker MX500 beryllium membrane 15.4 mm earbud speaker unit .

Shape: Round.
Size：15.4MM .
impedance: 130ohm.
Rated power: 0.02 (W).
Frequency response : 20-20kHz..
Sensitivity : 107 dB/W .
Harmonic distortion : 1 TMD% .
Composition: single paper cone.
Magnetic circuit form: internal magnetic type.
Frequency characteristics: full band (full range).
Uses: HiFi (Home) .

Direct flat head large size unit 15.4MM, with plastic cover, the spekaer uses an imported full beryllium film, the impedance is 130 ohms, and the mobile phone is pushed directly without any pressure. HIFI is more perfect.

The vocals in this unit are prominent and delicate, not floating and thorny, and powerful bass dive. The IF is sweet and the real flat head is super stuffy. The owner highly recommends the stuffy, top-loading, portable, mobile phone universal good unit.

Instructions for use:

It is recommended that customers use a multimeter test unit to turn on after receiving the speaker. Make sure the unit is good. During welding, the unit is labeled positive and negative. The color marked is positive welding positive wire. Non-standard spot welding negative electrode.

When soldering the iron, it is best not to exceed three seconds. The temperature is best at 350 degrees. The soldering time is too long, it is easy to burn the voice coil leads or directly burn the circuit board, causing the speaker to be short-circuited, silent, and the casing has a snap, please point The card slot is installed carefully.

Package : 2pcs