First, on how to ask questions
This is an old topic, and some moderators have proposed to post their posts too!
Home environment to buy a home theater (ie multi-channel system) or music system (ie stereo or Hi-Fi), when asked questions, we hope that one is to explain what your expectations of the system? How much do you plan to spend on your system? What is the size of your listening room? These are all essential elements for asking questions. Some newcomers who have just arrived, don't know how to ask questions, it doesn't matter. I just hope that everyone will do this, so your question may be answered faster by the masters. If the question does not have these elements, the answers from others are meaningless to you and have no operability.
At the very least, you have to make clear your question!
When I see some friends asking questions, I will only post one after the title? I hope that I don’t ask this question. This is a disrespect for our labor, or it means that you lack certain cultivation. DX, how many words do you want to answer a question, have you thought about it? If you want to clearly understand a basic principle to make you understand, you may have to say a long time. Sorry, if it is a very virtual problem, I generally do not answer it.
(Editor added: So the novices should spend more time diving in the forum to practice, this is an essential homework. It is very important to learn the sound knowledge beforehand to understand the equipment. I want to understand the sound problem, the audio equipment. There is a preliminary understanding of the style, and the request for resolution is seriously raised. Don't ask as soon as you come up, just ask someone to tell the answer immediately.)
Second, what kind of sound do you need?
If you want to build a beloved sound system or a home theater system, listening is an important element and a theme that we all pursue forever. But those who have just touched the sound and have had a listening experience have different listening experiences for the same system, and this must be understood. In different environments, the differences between different system settings and adjustments are also very obvious and even quite large. Welcome to Home Theater Network
Home theater and audio are a kind of psychologically suggestive consumption, and are sensory needs. The requirements for the system have a great relationship with each person's culture, concept, experience, environment, etc., and are also different.
But this kind of sense is invisible, and comparison and evaluation are more difficult. The average consumer can only listen to the ears of so-called enthusiasts who have experience around them. Because of the level of deviation of each person, I still read some audio and video professional media before purchasing. Audio-visual professional media currently distributes culture and practical classes. Generally, audio and video consumers should not read the media of fever culture. Power believes that domestic practical audio-visual magazines include "Home Theater Technology", "Audio-Visual Technology", "Practical Video Technology" and so on. The magazines of fever culture include "Hi-Fi Audio", "Audio World", "Modern Sound Technology" and "Audio Technology".
Conditional access to audio and video professional websites and forums. I haven't seen the forum of audio and video professional media websites better than us, and we are more lively than us. Other websites are also good, such as 21hifi.com. Regarding the information and communication on playing discs, there are very good professional websites in China, which are better than ours, such as DVD incomplete manuals.
Here I have to explain the changes in the listening needs of most people, this change is fast.
Generally speaking, just touching the sound likes the kind of fire and bright sound, but it doesn't feel like a good sound. So some domestic audio brands have so over-repaired the high and low frequencies of the sound reduction process to satisfy the hobby of the mass consumers. Usually it is rejected by the enthusiasts as garbage. Therefore, it is easy for an enthusiast to buy a sound for a novice. However, as long as the average consumer can buy the audio back and listen to a month or even a shorter time, the demand for the sound will change. Congratulations, you are approaching in the right direction. This change in demand, whether you are a home theater or a pure music system, is basically the same.
So what is the characteristic of this sound? Simply put, it is really pleasant to listen to, comfortable, low-frequency powerful and clean, high-frequency moderate and clear, the middle part of the sound is full, listening to your system for a long time is not irritating. It turns out that you don't really like the harsh, irritating sound.
After understanding the above characteristics of audio consumption, then what type of sound system do you need? There should be a goal in general, so that the store is also a good friend, so that you can give you appropriate help according to your needs. It's like you are looking for a girlfriend. It's not useful for others to look right or not. The key is you. Audio consumption is very user-friendly and personal, and it has something to do with many of your factors.
The last word of advice, the audio is for you, not for enthusiasts, not for getting a good review. After the system is set up, don't find yourself uncomfortable, enjoy your system!
In this passage, I hope that everyone will pay attention to it when formulating the system plan. If your system is supposed to be a display, if the sound is good or bad, you can skip it.
Third, the difference between domestic audio and imported audio
Although domestic audio has made gratifying progress in the harsh market in recent years, we should admit that compared with foreign old-fashioned audio, there is still a certain gap in domestic audio.
Domestic audio, especially some relatively old brands, such as Swans, Hewlett-Packard, Grand Hyatt, Octopus, Zhongshen, Fengzhisheng, Tianyi, Spock, Shengya, Xindike, Oubo, and later Ke Ke, He Shi, Jinyang, Qinpu, etc., will do audio products, and some have learned the market operation this year. CAV, Ailang, etc. are audio brands that are completely in accordance with market specifications. Domestic audio is better in material selection, and it does not care about the cost. For example, the power output of the power amplifier is sufficient, and the function is more suitable for the karaoke design with better effect. However, the lack of domestic power amplifiers is the design of digital systems. After all, it is our shortcoming. Welcome to Home Theater Network
Foreign audio, the design is more rigorous, a penny of goods, cost control is very strict. However, the performance of digital design is better than that of the domestic ones, and the sound performance of the equipment is highly respected. It is better to buy imported goods at a medium to high price. Especially for high-end products, domestic audio can't compete with it.
Fourth, the combination of power amplifier and speaker
The combination of amplifier and speaker involves two aspects: tone matching and power matching.
The first element of the combination of the amplifier and the speaker should be the matching of features. This is very confused for novices. At present, the power amplifiers and sounds of many famous brands at home and abroad have relatively distinctive features or characteristics, and each has its own consumer group. Because of this, matching different combinations often brings different benefits. Many newcomers want the forum to give a unified collocation scheme. If the forum does this, it will be irresponsible because everyone's needs and preferences for sound are different. About feature matching, it is necessary to understand the old post or look at the articles of professional magazines. This is a gradual process and cannot be rushed for success.
The power matching involves the sensitivity of the speaker and the room size and sound pressure.
Because the change in power indicator is very obvious for the cost of the power amplifier, most people choose the power amplifier is also limited by the total investment. So this is usually a hard-to-find end answer. The room is bigger, the listening environment is better, and the sound pressure of the system can be expected to be higher, because the replay music is a dynamic and large restoration process, and only a large sound pressure reproduction environment can make us get more music. Large sound pressures need to be matched with higher power amplifiers. At the same time, the final sound pressure is achieved by the speaker, which involves the sensitivity of the speaker, that is, the efficiency problem. The sensitivity of common speakers is about 87-89dB. In recent years, many speakers have reached the level of 90, 91. This all says that the sensitivity is normal. If the sensitivity is lower than 87, then obtaining the same sound pressure requires that the rated output power of the amplifier will be greatly increased. Regarding the rated output power of the power amplifier, it is also necessary to distinguish the difference between the transistor power amplifier and the tube power amplifier. Because of the transistor's own characteristics, when the transistor works close to the rated output, the distortion increases almost linearly. Usually, the power requirement of the high-system configuration transistor power amplifier is relatively large, and the enthusiasts even have 5 times and 10 times. This is not necessary for tube amps, because the tube amplifier is placed very close to the rated output and the distortion rises very smoothly, so the power headroom of the tube amp configuration can generally be small. However, in the cost structure of the power amplifier, the rated power largely determines the cost of the power amplifier. The greater the power, the higher the cost. Because most of my friends' budgets are rated, this affects the strict requirements of matching amplifiers. This is a compromise.
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