Adjustable Aluminum Laptop Stand,Laptop Stand Aluminium Adjustable Portable,Aluminum Laptop Stand Adjustable Height,etc.
Shenzhen Chengrong Technology Co.ltd is a high-quality enterprise specializing in metal stamping and CNC production for 12 years. The company mainly aims at the R&D, production and sales of Notebook Laptop Stands and Mobile Phone Stands. From the mold design and processing to machining and product surface oxidation, spraying treatment etc ,integration can fully meet the various processing needs of customers. Have a complete and scientific quality management system, strength and product quality are recognized and trusted by the industry, to meet changing economic and social needs.
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First, the low frequency of the low quality of the poor quality speakers can be astounding, but it is completely bloated and loose, lack of layering and solid feeling. A good low-frequency should be clean, bright, and well-defined, and it won't be dragged. Even a variety of low-frequency instruments such as drums, bass guitars, and piano bass can be easily distinguished. So don't be fooled by the low-frequency sense, the inferior low-frequency is not as comfortable as the clean sound. Some advertised a very heavy and heavy two-story bookshelf AV speakers, many buyers will think that it is very good value, because everyone will choose the speaker will first twist the weight, because the old birds have to pay attention to the more heavy the value, in fact, this There is something wrong with the way of speaking. Generally, the reason why the old enthusiasts want you to twist the weight is based on the weight of the speaker. The dense board (MD) of the box is thick, and the thickness of the board is not easy to resonate. In addition, the magnet of the speaker subwoofer is large. The bass thus presented sinks. However, on average, the weight of a bookshelf-type speaker with a height of 38 cm is estimated to be heavy at six or seven kilograms. If it exceeds this weight, it may even be as high as three or forty kilograms, and its weight may be gimmick. The overall sound quality is not very helpful.
Second, the test of the IF vocal vocals is the most commonly heard voice, the pros and cons are not difficult to detect, pay attention to whether the vocal has an unusual nasal sound, or the feeling of being screamed. The "box sound" of some speakers will also greatly interfere with the intermediate frequency, making the sound of this band ambiguous. IF sound is more serious than other frequencies, because most of the audible frequencies, or the frequency of the music, are concentrated in the mid-range, which is a replay for almost all types of music. Obstacles.
Third, the test of high-frequency flexibility and inferior high-frequency is squeaky ear, listening to people with a headache, in extreme cases, the violin or soprano's melody becomes the sharp noise of the brakes. Similarly, different instrumental music in high-pitched sounds produce different textures, and good high-pitched sounds can be distinguished. The high frequency of the superior and inferior level can even distinguish the different phonographs played by two different years and different woods. The easiest thing to master is that good treble is not audible and dazzling, the pores are erected, and it won't be more and more tiring, and it should be temperate and flexible, smooth and layered, high. At the highest point, it can still be easily heard without changing the sound (of course, it is not based on the recording of the singer)
Fourth, test high volume and sound field image Some speakers are stable at low volume, but when the volume is raised to an index, it will be distorted, or "shooting edge", there will be various non-recorded music signals, (of course However, the volume at 12 o'clock is a safe test standard). Specifically, if the orchestra is one of the favorite, you must pass this level. The standard speaker makes the sound out of the box to a certain extent, creating a clear sound field and image, showing the position and texture of the different instruments. There is sufficient diffusion to satisfy the existing listening space, the mute and the tail should be clearly heard, and in the case of large volume and "big burst" without distortion, the vocals and instrumental sounds will not be entangled. The high-quality playback can show a rich sense of music and air, and the bounce of the notes, like the clouds and see the sky, showing the whole sequence of audio and video. More directly, it will not be exhausting when you listen for a long time.
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How to judge the sound quality of the speaker
Although any speaker has its strengths and weaknesses, especially under a limited budget, how to choose a set of value-for-money speakers is a great science, because if you want to eat less grass, it will become fatter. Zhuang really has to work hard, but regardless of the price and level of speakers, there are certain reference standards or directions.