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How to buy high-quality speakers

2021-10-04 393
With the continuous improvement of living standards, people's requirements for quality of life also rise, and the audio industry is gradually moving towards the mainstream consumer market in this environment. As an important part of audio, sound is particularly important for the purchase of speakers.

Observe carefully
For the initial understanding of speakers, the steps of "viewing, weighing, knocking, and recognition" can be used to identify: firstly viewing the craftsmanship, secondly weighing, thirdly knocking on the cabinet, and four identifying the nameplate. The craftsmanship is to judge the quality from the first impression of the appearance of the speakers: the speakers made of natural logs are of course the best, but because of the high cost, they are often not recommended by the mainstream. Common speakers are decorated with a thin layer of wood veneer on the surface of MDF medium density fiberboard: speakers with real wood veneer and exquisite exterior decoration, especially such as rosewood, bird's eye, rosewood, walnut, nannan, red oak, etc. Rare wood veneer, its natural wood grain visual effect is excellent, and the hand feels smooth and comfortable. Especially the piano lacquer with symmetrical butterfly pattern real veneer is coated and polished in multiple layers, most of which can be regarded as high-end quality speakers.
Good speakers are mostly made of high-quality MDF particle boards of 18-25 mm. High-end flagship speakers are made of super heavy solid wood such as red sandalwood and yellow grapefruit or multi-layer composite plywood, so the weight is very amazing. Often the net weight of a pair of speakers is up to fifty or sixty kilograms. Most of the mid-to-low-end and large-scale goods use soft-textured particleboard, and the counterfeit and inferior products use inferior paper rubber sheets, so the weight is generally lighter.

Knock the top, bottom, left, and right baffles of the box with your knuckles. All sides of the box make a solid and slight crisp sound. It feels that the plate is hard and thick, and there are many reinforcing ribs inside. The box structure is reasonable and strong. This kind of sound insulation and anti-standing wave measures and other effects. This kind of cabinet is costly and difficult to process, so there are few counterfeit and inferior products. If you hit the box with the knuckles to make a "puff, puff" empty sound, it means that the plate is too thin, the quality of the material is too poor, and the structure is unreasonable. And there is no sound-absorbing material or reinforcing ribs inside, which leads to the formation of a large amount of diffuse reflection in the box. Buying this kind of speakers will never get a good playback effect.

How to buy high-quality speakers

Watch out for labels
A technical guide label is usually affixed on the back of the finished speaker: the content is nothing more than the speaker's frequency range, sensitivity, carrying power and impedance. Among them, the sensitivity rate is the most important indicator of the speaker, which determines to a large extent what kind of power amplifier the box should be equipped with, how much power is needed to push and so on.
The other most important indicator is the frequency range. For example, the frequency range of a speaker is 60 Hz-20 kHz. 60 Hz represents the extension value of the speaker in the low-frequency direction. The lower the number, the better the low-frequency response of the speaker. 20 kHz represents the high frequency extension value that the speaker can achieve, and the higher the number, the better the audio characteristics. Some speakers do not indicate this index, the frequency extension range will become very wide.

Listen patiently
After visual considerations have been made, let's enter the audio part for trial listening.

The first thing to listen to is the characteristics. Generally speaking, a good speaker will have its own unique sound characteristics. The second is to listen to the details. As long as the sound quality of the speakers is good, it is not the display of the external atmospheric sound, but the performance of its processing of the sound details. At the same time, a good speaker must have a high endurance. Many speakers will delight the listener at the first hearing, the sound is clean and the texture is good, but this does not necessarily mean that it is a good speaker. In the next period of time, the listener may find that its sound gradually loses its original color and becomes dry and tasteless, so hearing resistance is very important.
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