23mm 4ohm 8ohm Cord Telephone Speaker Unit

Loudspeaker refers to the device that gives out sound. However, as we all know, the loudspeaker itself cannot pronounce. It converts the current signal into an acoustic signal only when it is supplied with signal current. Therefore, it is realized through energy conversion. Therefore, the loudspeaker refers to an electroacoustic transducer that converts electrical signals into acoustic signals. The fidelity of loudspeaker energy conversion is determined by the performance of loudspeaker.

Each speaker must contain a speaker driver unit, which is the most important component for speaker actuation and is responsible for sound generation.

The 23mm speaker unit is 23mm with low FO speaker, using the high-temperature-resistant PEI material. it use PCB contact. The 23mm speaker unit can be used in speaker systems in many scenarios, such as wired phones, access control systems, and notebook computers.

Rated Input	1W
Max Input	1.2W
Freq.range	700Hz
Impedance at IKHz	8±20%Ω
SPL at 1KHz	96±3dB

Speakers are divided according to the sound frequency of the frequency amplifier: they can be divided into woofers, mid-range speakers, tweeters, full-band speakers, etc.

1. Mid-range speakers: The speakers that mainly play intermediate-frequency signals are called mid-range speakers. The midrange speaker can realize the frequency connection of the woofer and the tweeter when playing music. Since the intermediate frequency occupies the dominant range of the entire sound range, and the human ear is more sensitive to the intermediate frequency than other frequency bands, the sound quality requirements of the midrange speaker are higher. There are cone-shaped, dome-shaped and horn-shaped types. As a mid-range speaker, the main performance requirements are equal sound pressure frequency characteristic curve, low distortion, and good directivity.

2. Woofer: The speaker that mainly plays low-frequency signals is called a woofer, and its bass performance is very good. In order to extend the lower limit of low-frequency playback as far as possible, the woofer has a relatively large caliber. Generally, there are woofers with different caliber specifications such as 200mm and 300-380mm, which can adapt to large input power. In order to improve the tolerance value of the vibration amplitude of the paper cone, soft and wide supporting edges are often used, such as leather edges, cloth edges, insulating edges, etc. In general, the larger the aperture of the woofer, the better the low-frequency sound quality during playback, and the greater the input power it can withstand.

3. Full-band speaker: Full-band speaker refers to a speaker that can cover the bass, mid-range and treble frequency bands at the same time, and can play electrical signals in the entire audio range. The theoretical frequency range is required from tens of Hz to 20kHz, but in practice it is very difficult to use one speaker, so most of them are made into double cone speakers or coaxial speakers. The double-cone speaker is to add a small-diameter paper cone to the center of the large-diameter speaker to reproduce high-frequency sound signals, which is beneficial to the improvement of the upper limit of the frequency response. Coaxial speakers are two woofers with different diameters and tweeters installed on the same central axis.

4. Tweeter: Speakers that mainly play high-frequency signals are called tweeters. In order to make the upper limit frequency of high-frequency playback reach 20kHz, the upper limit frequency of human hearing, the tweeter has a smaller diameter and a tougher vibrating membrane. Compared with the bass and midrange speakers, the performance requirements of the tweeter are not only the same as the midrange unit, but also require a higher upper limit of the playback frequency band and a larger input capacity. Commonly used tweeters are cone-shaped, flat-shaped, dome-shaped, ribbon-shaped capacitor-shaped and other forms.

Q: What's is your shipping service?

A: We can provide services for vessel booking, goods consolidation, customs declaration, shipping documents preparation and delivery bulk at the shipping port.

Q: What's your tem of the delivery?

A: Our ordinary delivery term is FOB SHANGHAI or NINGBO. We also accept EXW, CFR, CIF, DDP, DDU etc. We'll offer you the shipping charges and you can choose the one which is the most convenient and effective for you.

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