18 ohm Headphone Speaker Unit Full Range Earphone Speaker PU Metal Aluminum Film Headset unit .
Impedance: 18 ohms .
Rated power 0.005 (W) .
Frequency response 20-20000 (kHz) .
Harmonic distortion 3 (TMD%) .
Sensitivity: 100DB .
Frequency characteristics: Full frequency band (full range) .
Unit diameter: 8MM .
Height: 5.3MM .
Diaphragm: PU composite special metal aluminum alloy plate .
Unit sound characteristics: PU makes the low frequency flexible enough, the voice coil is made of imported copper clad aluminum, and the deep dive is high. The middle and high frequency vocals of the composite metal aluminum alloy version are accurately analyzed in place. It is more omnivorous, and can be used as a single circle or a circle. iron.
Instructions for use:
It is recommended that customers use a multimeter to test the continuity of the unit after receiving the speaker to ensure that the speaker is in good condition. In welding, the unit is marked with positive and negative electrodes, the color marked is the positive electrode wire, and the unmarked point is the negative electrode. It is best not to exceed three seconds when the soldering iron is soldering. If the soldering time is too long, it is easy to burn the voice coil lead or directly burn the circuit board, causing the speaker to short-circuit and make no sound.
Package: 2pcs .
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