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By certification 
This is a speaker unit with a diameter of 26mm, it with the whole machine frequency response curve high-frequency filter. The 26mm speaker unit use lead wire contact .This product can be applied to wired phones, entrance guard system and laptops.
Rated Input |
1W |
Max Input |
1.2W |
Freq.range |
800Hz |
Impedance at IKHz |
8±20%Ω |
SPL at 1KHz |
87±3dB/0.89v/0.1m |
The main performance indicators of the speaker are: sensitivity, frequency response, rated power, rated impedance, directivity and distortion and other parameters.
1. Rated power
The power of the speaker is divided into nominal power and maximum power. Nominal power is called rated power and undistorted power. It refers to the maximum input power allowed by the speaker within the rated undistorted range, and the power marked on the speaker's trademark and technical manual is the power value. The maximum power refers to the peak power that the speaker can withstand at a certain moment. In order to ensure the reliability of the speaker, the maximum power of the speaker is required to be 2~3 times the nominal power.
2. Rated impedance
The impedance of a speaker is generally related to frequency. Rated impedance refers to the impedance measured from the speaker input when the audio frequency is 400Hz. It is generally 1.2 to 1.5 times the DC resistance of the voice coil. Common impedances of general moving coil speakers are 4Ω, 8Ω, 16Ω, 32Ω, etc.
3. Frequency response
When an audio signal of the same voltage but different frequencies is applied to a speaker, the sound pressure generated by it will change. Generally, the sound pressure generated in the middle audio frequency is larger, and the sound pressure generated in the low audio frequency and high audio frequency is smaller. When the sound pressure drops to a certain value of the mid-range audio frequency range, called the frequency response characteristics of the speaker.
The ideal speaker frequency characteristics should be 20~20KHz, so that all audio can be reproduced uniformly, but this is impossible. Each speaker can only reproduce a certain part of the audio well.
4. Distortion
The phenomenon that speakers cannot reproduce the original sound realistically is called distortion. There are two types of distortion: frequency distortion and nonlinear distortion. Frequency distortion is caused by the strong playback of signals of some frequencies and weaker playback of signals of other frequencies. The distortion destroys the original ratio of high and low sound levels and changes the original sound. The nonlinear distortion is caused by the vibration of the speaker vibration system and the fluctuation of the signal are not completely consistent, and a new frequency component is added to the output sound wave.
1. Can we get some samples? Any charges?
Yes, free existing labels, you need to pay shipping cost.
2. How can we get a quote?
Contact us with specification: such as material, design, size, shape, color, quantity, surface finishing, etc.
3. Can you help with the design?
Yes, Simply design free, special design need to pay.
4. What's the trade term and payment term?
Amount less than $1000, 100% paid before production, more than $1000 can be negotiated!
T/T, Western Union, PAYPAL etc.
5. May I have new sample made with my design for confirmation?
Yes. Sample charge means set up charge for production line, little quantity we suggest that straight for production. Large quantity we suggest that sample first, and sample fee can be refund.
http://www.acousticunit.com/
