In fact, why don't we start from the most basic places? I think that improving your listening environment is definitely much bigger than changing equipment! Because the former is directly to the improvement of sound quality, while the latter is only to strengthen the tone of the tone, and there are always uncertain factors. Remember, in a wrong room, no matter how advanced your equipment, the sound of the system is still wrong, even if it has so-called excellent sounds and sound fields! We often complain that our equipment is not enough, but do you realize that your room is not enough to make your hardware performance greatly discounted? I have stayed in a private listening room with ideal acoustic conditions. Except for the CD player, all of them are domestically produced equipment, with a total value of more than 5,000 yuan. What is the sound? I think those 20,000-level systems in the wrong room are not their opponents at all. The strong texture and deep sound field are still unforgettable.
When reading many readers' letters, many times they complain that his system is loose, medium and high frequency is too hard, too much, or the position is blurred. In fact, the above problems are caused by unreasonable acoustic conditions. If the equipment you use is a carefully designed product, if the physical indicators such as distortion, frequency response, and signal-to-noise ratio are excellent, it is absolutely unnecessary to change the machine because it is a normal equipment. Its number of stages may be lower, but it is by no means a bad device.
Why is there a high or low level of equipment? The following metaphor of the author does not know whether it is appropriate: a healthy, normal woman, is it not ordinary and beautiful? There are many and many levels between ordinary women and celestial beings. According to their appearance, temperament, body, wisdom and other factors, men will choose their own standards and their own strengths, and they will pursue their pursuit of women. Like we choose a variety of audio equipment. But remember, the equipment is only divided into grades and there is no good or bad. The room is really good and bad, so it is a more essential and decisive factor.
How do you judge the acoustic characteristics of your environment? The easiest way is to play the frequency test signal of "Hugo Fever Day Disc (1)". If the sound pressure at some frequencies is particularly strong or weak, and the frequency is not a smooth transition, then these frequencies often exist. Peaks and valleys. The question about the filling of the valley is more complicated. Under the current amateur conditions, it is difficult to achieve a satisfactory effect, and only a certain degree of compensation can be obtained by positioning. Fortunately, the main problem facing us in our untreated rooms is the peak problem, so experts always recommend that we do sound absorption and diffusion work. For rooms with a fixed layout, carpets, double-layer velvet curtains and cylindrical cushions are essential musical instruments. In addition, in addition to hanging the wall covering on the smooth wall, you can also make several tall wooden bookcases and record cabinets (without glass doors), which is both practical and conducive to the spread of sound. If your room has not been renovated, please refer to the wall skirt, plane ceiling, composite wood floor that I just mentioned, and the cylindrical mineral wool listening material of the exterior cloth in the corner. In short, try to place your room in soft tones. It should be said that this style of decoration is absolutely in line with the aesthetic standards of ordinary people.
So, after completing the above work, is it all right? the answer is negative. Because the design of the acoustic environment is a rather complicated matter. For the average enthusiast, you don't know what specific frequencies are absorbed after doing this, and you don't know if they are just right. Even if you give a lot of formulas and sound absorption coefficient tables for various materials, you may not calculate them, and the results may not be accurate. For example, if an expert asks you to make a perforated sound absorbing device, how many holes should you play? What is the diameter of each hole? I think most of you can't figure it out. How to do it? The safest way is to ask the acoustic experts to make adjustments while decorating. But for the average enthusiast, it seems to be no different from the Arabian Nights. Everyone who reads this answer may be very discouraged. I feel that doing so much effort does not necessarily guarantee success. Isn't that hard work? In fact, you don't have to be discouraged! Your purposeful design
The listening room, although not necessarily perfect in acoustic properties, is certainly much better than without any treatment, and this difference can be completely discerned! That is to say, the balance of the acoustically treated room is better than that of the unprocessed room, which is more reasonable and is conducive to the reproduction of the original music.
After completing the acoustic treatment of the room, the next step is to position the equipment to make the sound of your system more balanced. Positioning can compensate for the imperfections in the acoustic characteristics of your room to some extent. Therefore, acoustic processing plus equipment placement will make your system a big step toward balanced sound. The most important part of the equipment placement is the placement of the speakers. According to some opinions, as long as the length and width of your room are used, the distance between the speakers and the back wall can be determined. For this kind of uniformity that is determined by the ever-changing acoustic conditions, the author is really I have doubts. As a simple example, the three-dimensional dimensions of rooms A and B are identical, but the acoustic conditions are different. If you follow the same match, the speakers are placed in one of the X points of the room according to the guidelines. But I am sure that the sounds of rooms A and B will definitely be different. Well, I would like to ask: Is the system that is placed according to the guidelines, is it good or good? God bless, don't tell me - both are great! . This section is really a bit of a taste of medicine.
Introducing such a placement criterion, I want the enthusiasts to find the buzz as soon as possible, I think the starting point is good. But the speaker placement is by no means a one-size-fits-all thing, and it is impossible to read the old book. It requires hard work and sweat, patience, and inspiration. Positioning is actually a recombination of the enthusiasts' energy, phase and other factors such as direct sound and reflected sound. Combine it into a relatively balanced state. The following is some of the author's rough experience in the placement, for your reference:
The first step is to leave the speaker as far as possible from the wall, and the distance between the speakers is between 1.8 and 2.3 m. Of course, this has to meet some preconditions: (1) The listening position is at least 0.5m from the back wall. (2) The emperor's position speaker is also 1.8~2.3m. (3) When the speaker interval is 1.8~2.3m, the two speakers should be as far as possible from the side wall.
The second step is to play the frequency test sample of "Hugo Fever Day Disc (1)". Generally, the frequency above 1 kHz in the family rarely appears in the valley. Under normal circumstances, only the energy will appear too much. There will be a noticeable improvement in the hanging of some tapestry on the wall. The problem mainly occurs below 1 kHz, especially in the frequency band of 56~600 Hz. There are both peaks and valleys. When playing with test discs, you will find that some frequencies are particularly weak, some are particularly strong, and the changes are very uneven and discontinuous. of.
The third step, pay attention to listening in the frequency band of 56 ~ 600Hz, there are many peak phenomenon, or there are many phenomena. Asahi is the former, indicating that your low frequency absorption is not enough. You can make some long strip of mineral wool absorbers wrapped in fabric at the ridges of the four corners. After adding four sound absorbers, if some frequencies are absorbed too much, you can reduce the sound absorber or lean the speaker back slightly. If it is the latter, it means that the low frequency has been sucked too much. In addition to reducing some low frequency sound absorbing materials, the speaker should be placed against the back wall until the low frequency that is sucked is maximally compensated.
In the fourth step, after the first three steps are completed, the frequency recovery rate that is usually sucked out is nothing more than this, but there is a small number of peaks in the queue, for example, 160Hz to the next traaack200Hz, 200Hzz will be significantly louder. At this time, it can be adjusted by reducing or expanding the pitch of the speaker. The distance of each movement should be about 30cm, and the test signal is continuously played and continuously adjusted.
In the fifth step, the test signal is played again. The normal sense of hearing is that in the frequency band of 56~600Hz, the low to high is gradually louder, and the change between each track is uniform. 21#track should not be particularly loud, and 22track suddenly becomes whispered. The situation, Next, play a piece containing vocals and drums, pay attention to the reproduction of the details of the person's chest and tympanic vibration, and compare them with headphones (the balance of the headphones is much better than the speaker). If there are still obvious differences, you can pass the speaker.æ‹— and move back to improve.
After completing the above five steps, the sound of your system should be improved. If there are still obvious peaks or valleys at certain frequencies, and you don't want to make a big move, I suggest you choose a quality equalizer! Equalizer? When there are many obvious defects in the audible frequency and you are not going to fix it, I think this has lost Hi-Fi--high fidelity itself. I would rather have a slight change in the tone of the system due to the addition of the equalizer, and I can't bear its spectrum as jagged!
The equalizer does make the sound of your system more balanced and reasonable. Otherwise, why does Accuphase also introduce an expensive DG-28?
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