How to identify the horn quality?

How to distinguish the horn is good or bad? The televisions, radios, and recorders we use in our daily lives have loudspeakers, commonly known as speakers, that convert electrical signals into sound signals. Although any speaker has its strengths and weaknesses, especially under a limited budget, how to choose a set of great value speakers is a major knowledge, speaker manufacturers tell you that regardless of any price and level of speakers, there are certain reference standards or directions.

First, test the quality of low frequency
The low frequency generated by inferior loudspeakers can be deafening, but it is completely bloated and thick, lacking a sense of layer and robustness. A good low frequency should be clean and bright, well structured, and not muddle-like, even if various low frequency instruments such as drums, bass guitars and piano bass can be easily distinguished. So don't be easily fooled by low frequency sense of quantity,
Poor low frequency is not as natural as clean sound. Some brand very heavy two-tone road bookshelf AV horn, many buyers will think it is very valuable, because everyone will choose the horn will screw the weight, because some so-called "experts" said, the heavier the horn, the more value, in fact, this method is right and wrong, the general old enthusiasts want you to screw the weight,
According to the weight of the speaker, the dense board (MD) of the box is thick, and the thickness of the board is not easy to generate resonance; In addition, the magnet of the loudspeaker heavy bass monomer is large, so the bass presented will sink. But the average estimate of 38 cm high bookshelf speaker weight, in six or seven kilograms should be considered heavy, if more than this weight is much, the body even up to 30 or 40 kilograms, its weight may be a gimmick, the overall sound quality help is not much.

Second, test the speaker medium frequency voice
The human voice is often heard, the pros and cons are not difficult to detect, pay attention to whether the human voice has an unusual nasal sound, or the feeling of being pressed into the mouth. The "box sound" of some speakers will also greatly interfere with the intermediate frequency, making the sound in this band ambiguous. Mid-frequency staining is more severe than other frequency staining because most audible sound frequencies,
Or the frequency of the music is concentrated in the mid-frequency range, which can be a barrier to playback for almost any kind of music.

Third, test the flexibility of the speaker high frequency
Low-quality high frequencies are high-pitched ear-piercing, splitting headaches and, in extreme cases, turning the bel canto of a violin or soprano into a high-pitched brake noise. Similarly, different instrumental music in the treble produces different textures, and good treble music can be distinguished. The high frequency of a good or bad level can even make it possible to distinguish two different years, different wood played by different rhymes.
What is easy to master is that a good loudspeaker treble is not intimidating to listen to, pores are erect, and it is not tiring to listen to, and it should be soft and elastic, smooth and layered, and it can still be easily heard at a high altitude without changing the tone.

Fourth, test high volume and sound field knot image
Some speakers are stable at low volume, but when the volume rises to a certain index, it will be distorted, or "beat edge", and various non-recorded music signals will appear (of course, the volume of no more than 12 points is a safe test standard). Specifically, if orchestral music is one of the preferred genres, it must pass this pass.
The standard horn makes the sound out of the box to a certain extent, creating a clear sound field and knot image, showing the point position and texture of different instruments.
There is sufficient diffusion to meet the existing listening space, the weak tone and the last sound should be heard clearly, and there is no distortion in the case of large volume and "big bang", and the voice and the instrument will not be entangled. High-quality playback can show the rich musicality and air sense, and the bouncing power of the notes, like pushing away the clouds to see the blue sky, showing the whole picture of detailed and orderly sound. More directly, it will not tire the ear after listening for a long time.