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Advantages and disadvantages of full-range speakers and crossover speakers

2021-04-28 930
In the speaker system, speakers (speakers or speakers) are mainly divided into two categories, one is full-range speakers, and the other is crossover speakers. So what exactly is a full-range speaker? What is a crossover speaker? What are their advantages, disadvantages and differences?

About full-range speakers
A speaker made of only one full-range speaker is called a full-range speaker. The biggest difference between it and an ordinary speaker is that it has only one speaker. The ordinary speaker generally uses a crossover to separate the high, medium, and low frequencies. There are two speakers. It varies from N to N. So what is full frequency?
Full-frequency, as the name implies, refers to a wide frequency range and a wide coverage. The previous full-frequency speakers covered a frequency range of 200-10000Hz. In recent years, with the continuous improvement of acoustic technology, the general full-frequency speakers can now reach 50—— In the frequency range of 25000Hz, the low frequency of some speakers can go down to 30Hz.

The frequency range that the human ear can hear is 20-20000Hz. The full-frequency speaker can basically cover all the sound of the human ear can hear the frequency range, but unfortunately, the current full-frequency speaker on the market, although it is Full range, in fact, most of its frequencies are concentrated in the mid-range range, and the expressive power of heavy bass and treble is slightly weaker, so the sound heard is relatively flat, and the three-dimensional feeling is not so strong.

Advantages and disadvantages of full-range speakers and crossover speakers

Features/advantages of full-range speakers: point sound source, so the phase is accurate; the timbre of each frequency band tends to be the same, and it is easy to bring better sound field, imaging degree, instrument separation and level. Because of the strong expressive power in the mid-frequency stage, it happens that most of the human voices are mainly mid-frequency. Therefore, the full-range speaker is very suitable for listening to the human voice, and the distortion rate of the ear is low, and the human voice is quite full and natural.

Disadvantages of full-range speakers: The design and final performance of each frequency band will be constrained because of the need to meet the needs of different frequency bands in design. The extension at both ends of the high and low frequencies is relatively limited, and the transient and dynamic are relatively compromised.

About crossover speakers
A crossover speaker means that its frequency range is staged, and the signal frequency is more focused. Crossover speakers are generally built-in dual-frequency speakers or tri-frequency speakers or more. The frequency divider speaker is equipped with a frequency divider, which can split different audio signals into several parts, and transmit signals of different frequency bands to the corresponding speakers through the frequency divider.

Features/advantages of crossover speakers: Each frequency band is sounded by an independent unit, so each unit can work in the best condition. The extension of high and low frequencies is easier and better. The independent intermediate frequency unit can bring extremely high playback quality, and the overall electro-acoustic conversion efficiency is high.

Disadvantages of crossover speakers: Tone difference and phase difference exist between each unit; crossover network introduces new distortion to the system. The sound field, image resolution, separation and gradation are all more susceptible to influence, and the timbre may deviate.

to sum up
The advantages and disadvantages of full-range speakers and crossover speakers are exactly opposite. In addition, a coaxial speaker is not a full-band speaker, it is a special form of a crossover speaker, which looks like a full-range speaker. The coaxial horn solves the phase difference problem relatively well, but the other shortcomings of the crossover horn still exist. Full-range speakers generally sound full and flat, because the full-range speakers in the Hertz range acceptable to the human ear cannot cover all of them. The key to the cross-frequency speaker is to give people the feeling of the sound field, coupled with the delicate sound quality processing in each frequency band, it has a completely different experience from the full-frequency speaker.
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