1.Test the quality of low frequency
The low frequency produced by inferior horn speakers can be loud and deaf, but it is completely bloated and bulky, lacking a sense of layering and firmness. (That's what we usually call the low frequency ambiguity) Good low frequency should be clean and lively, with clear layers, not sloppy, and lingering, even if various low-frequency instruments such as large and small drums, bass guitar and piano bass, Can be easily distinguished. So don't be fooled by the low-frequency volume. Inferior low-frequency sounds are not as natural and comfortable as clean sound. This is the low-frequency sound effect we want. But it cannot be generalized. For example, a part of the extremely low frequency is added by the sound engineer when recording, and the pine tube of the instrument can reach the extremely low frequency of 18HZ (Hertz).
2.Test mid-range vocals
Human voice is a frequently heard voice, and it is not difficult to detect its pros and cons. Pay attention to whether the human voice has an unusual nasal sound or the feeling of being squeezed into the mouth. (The speaker horn is inside the car door, etc.) The "box sound" of some speakers (when the door is not processed, for example, without sound insulation) will also greatly interfere with the intermediate frequency and make the sound in this frequency band blurry. Intermediate frequency sound coloration is more serious than that of other frequencies, because most of the audible sound frequencies or music frequencies are concentrated in the mid-range frequency range, which is a replay for almost all types of music. Obstacles.
3.Test the flexibility of high frequency
Inferior high-frequency is squeaking in the ears, which makes people have a headache. Under the circumstances, the beautiful sound of the violin or soprano becomes the sharp noise of the brake. Similarly, the different textures produced by different instrumental music in the treble, good treble can be distinguished. The high frequency of the next level can even distinguish the different rhymes played by two different woods of different years. The key to easy mastery is that a good treble is not to make people listen to it but daunting, the pores are erected, and it will not make people listen to the more tired, and it should be soft and flexible, smooth and layered. Up to the highest point, it can still be heard easily without changing the voice.
4.Test high volume and sound field image
Some horn loudspeaker products are stable at low volume, but when the volume is increased to a certain index, they will be distorted, or "side-by-beat", and various non-recording music signals appear. (Of course, a volume of less than 12 o’clock is a safe test standard. , LEVEL). Specifically, if orchestral music is one of the favorite music types, you must pass this level. The standard loudspeakers are able to keep the sound out of the box to a certain extent, creating a clear sound field and image, showing the position and texture of different musical instruments, with sufficient diffusion and even growth, wide, high and high-quality audio space. Weak sounds and tail sounds should be heard clearly, and there is no distortion under high volume and "big burst" conditions, and the human voice and instrument sound will not be entangled. The rebroadcast can show a rich sense of music and air, as well as the bounce power of notes, like a cloud and mist to see the blue sky, showing the entire detailed and orderly audio image. What's more straightforward is that it won't make your ears tired after listening for a long time.
