How to choose speakers? Feb 21 , 2023

How to choose speakers?

For those who love music and pursue high-quality life, it is sooner or later to buy high-quality speakers. So, what qualities are necessary for a good pair of speakers? A good speaker should be very listenable.

The degree to which the speaker expresses the details of the music determines the resolution of the speaker. The box with high resolution contains huge music information, so that people can hear more music details and a multi-angle, multi-directional, diversified, and multi-layered music sound field. Good speakers can hear accurate sound image positioning.

The so-called sound image localization refers to where each instrument in the performance is pronounced. For example, when listening to a symphony, a speaker with accurate sound image positioning will make you feel that the sound of the instrument is orderly and the rhythm is consistent. In the most exciting part, the music and human voice will not be mixed together. Close your eyes and listen, you can even feel the unique three-dimensional sense of space and presence in a music concert.

To judge whether the value of a pair of speakers is worth buying, in addition to personal preference, the most important thing is to look at the indicators of the speakers.

01 Sensitivity

Sensitivity refers to the sound pressure generated at a distance of one meter from the speaker with 1 watt of power to the speaker. For example, the sensitivity of Tonewinner's TD-8 floor-standing box is 87dB, and at a distance of one meter, it can generate a sound pressure level of 87dB if it is given an electrical signal of 1W. So the higher the sensitivity, the greater the sound pressure level the speaker can provide.

Use the same power amplifier to drive speakers with different sensitivities. Under the condition of the same output power, the sound of the speaker with higher sensitivity will be louder. Conversely, for a fixed target sound pressure level, the speaker with higher sensitivity needs less power.

02 Frequency response range

The frequency response range is simply the range of sound frequencies that can be reproduced to an appropriate volume when the speaker plays music or sound effects. Affected by factors such as the speaker unit and cabinet design, the frequency response range between the bookshelf speaker cabinet and the floor cabinet is very different. For example, the frequency range of Tonewinner TD-9 bookshelf speaker is 40HZ-25KHz, and the frequency range of TD-8 floor box is 35Hz-25KHz.

03 Rated power

The rated power is a reference index of the speaker, which does not indicate the quality of the speaker, but only provides a reference for selecting a power amplifier. For example, the power range of the TD-8 floor-standing box is 20W-150W, that is to say, the power amplifier required to drive the speaker must have an output power of at least 20W, but it is not recommended to use an amplifier larger than 150W for full power output, otherwise the speaker will be damaged. There is a possibility of burning out.

04 Impedance

The input impedance of the speaker is generally high impedance and low impedance. Generally, the input impedance higher than 16Ω is high impedance, and the input impedance lower than 8Ω is low impedance. The standard impedance of the speaker is 8Ω.

The 4Ω speaker can obtain double (3dB) sound pressure level under the standard 2.83V voltage input of the power amplifier. Simply put, when the volume knob of the power amplifier is placed on the same scale, the 4Ω speaker can be louder than the ordinary 8Ω speaker. Of course, obtaining higher loudness also puts forward higher current requirements for the power amplifier.

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