As a mobile communication tool, the good or bad of the speaker directly affects the quality of the communication between the two parties, and the quality of the talk machine can generally be judged from the following six aspects.

1. Dynamic category, the dynamic category is under the indicators of the dynamic. When the audio level is consistent, the wider the dynamic category of the horn, the more clear the sound details of the soundtrack.

2. Impedance, the nominal impedance of the speaker is the impedance that the speaker appears at both ends of its specific operating frequency. When it runs on this impedance value, the speaker can get the maximum power. The common impedance value of the horn is generally 4, 5, 6, 8, 16, etc. When choosing, you should pay attention to the resistance of the horn than the impedance value of the sound card or power amplifier.

3. Pure sound, the pure sound is when the speaker is in addition to the additional power and frequency range, add the junk sound of no mechanical noise and touch sound to the horn with a sine signal with a certain frequency. The quality of pure sound depends on the quality of the horn workmanship.

4. Distortion, distortion refers to non -linear distortion. The distortion will seriously affect the quality of sound release. The smaller the percentage of the distortion rate, the smaller the distortion.

5. Nominal power, nominal power is the normal working power of the speaker, and the speaker should be used at this power. When choosing, pay attention to the nominal power of the selected speaker should not be lower than the output power of the sound card or amplifier. The maximum power refers to the maximum power that the speaker can withstand, and China stipulates that the maximum power cannot exceed 1-2 times the rated power of the speaker.

6. In the frequency response, when the speaker is in a constant voltage, the sound pressure of the speaker changes with the frequency, and the frequency response is generated. Therefore, in general, the frequency range of the horn directly affects the quality of the speaker. At present, the frequency of a good-quality speaker should reach the 60Hz-20000Hz category.

The above is the six criteria for judging the good and bad of the talks. If there are other questions about the talks, please contact us.