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Matching and adjustment of audio equipment

matching and adjustment method of CD player

why should I put the matching and adjustment of CD player in the first place? Personally, I think that the CD player is the source of the sound of the whole sound system, which is like "water". If the water at this source is "polluted", imagine that it is futile and harmful to use, enlarge, match and adjust this "polluted water" in any form

here we may as well give an example to understand this truth. When the CD player is playing a CD, you will find that when you stomp on the floor, the speaker that is singing loudly at this time will suddenly stop silent, and it will resume normal work after about 1 second

this shows that the interference and influence of external vibration on the CD player is very serious. Stamping feet is a relatively large external vibration interference phenomenon. It can be imagined that when the music played by the CD player is in high dynamic, high pitched pressure or strong tone, the sound pressure of the speaker is about 100dB and spreads to the whole listening room. At the same time, the CD player itself will certainly be disturbed and affected by the strong "vibration" from the outside of the speaker, which will distort the CD player and degrade the sound quality. Based on this, it is particularly important and prominent to do a good job in the shock absorption of the CD player itself

the matching and adjustment process of my CD player is as follows: I placed two pieces of 500mm (wide) above the iron plate sound frame I designed and made × 400mm (deep) × 20mm (thick) granite, a 500mm (wide) piece is placed in the middle of the two granite × 400mm (deep) × 10mm thick wool felt; 50mm (square) is used between granite and iron plate sound frame × 20mm (thick) wool felt is in three-point contact from front to back

two 450mm wide blocks are placed above the granite × 300mm (deep) × 30mm thick pine board, four 450mm wide pine boards are placed between the two pine boards × 300mm (deep) × 10mm (thick) wool felt; 50mm (square) is also used between pine board and granite × 20mm (thick) wool felt is in three-point contact from front to back

between the pine board and the CD player, or through 50mm (square) × 20mm (thick) wool felt is in three-point contact from front to back

a 500mm wide piece is placed above the CD player × 300mm (deep) × 25mm thick iron plate; The distance between the CD player and the iron plate is 50mm (square) × The 10mm (thick) wool felt is in three-point contact from front to back

after this treatment, even if you stamp your feet on the floor, it will basically not affect the normal playback of the CD player

why do I like and use the matching adjustment means of "wood", "wool felt" and "three-point grounding"? There is a story here: maybe it is because of the more influence of Hong Kong's sound culture. Many enthusiasts prefer to use "pyramids" of various materials and shapes to match and adjust the sound system; In fact, this is still the case up to now. As early as more than ten years ago, I also designed, made and used wood cones and copper cones of all kinds of materials. After repeatedly using the audition without opening the oil delivery valve, I finally found that the general direction of the sound of using a pyramid as a means of matching and adjusting is basically "weight loss". But its advantage is that the sound field positioning will be more accurate, and the line texture of the instrument will be more prominent

at that time, because the sound of CD players was generally stiff and sharp, I always felt that such a matching and adjustment method seemed to be too "ahead of schedule", because it did not have much substantive improvement and help to adjust and improve the sound problems of current CD players. Based on this, I want to use another way to match and adjust, so as to achieve the purpose and function of increasing the sound thickness and softness

at this time, the first thing I think of is musical instruments. I think: many traditional musical instruments, those with the most beautiful and charming sound, those with the highest utilization rate, and so on, are all designed and made with "wood" products. Perhaps it is precisely because the natural pitch and homophonic components of "wood" products are more natural and durable to listen to, and are more suitable for human listening habits. Therefore, most musical instruments designed and produced by "wood" products have a very beautiful, pleasant and durable sound. Thinking of this, I immediately found a piece of wood similar to the size of the CD player and put it under the CD player. Then I opened it and tried it. As a result, a miracle happened

the same CD and song tracks now sound very full, thick, warm and friendly, and the sound seems to become more flesh and blood and more human

I was very excited. I immediately found several pieces of wood and placed them under the power amplifier and the speaker respectively. The results showed that: basically, the more the front-end audio equipment, the higher the sensitivity to wood and the better the improvement effect

I think this is mainly because the resonance produced by the vibration of the board resonates with the CD player again, which makes the harmonic component of the CD player also integrate the harmonic component of the board, so that the sound of the CD player becomes very full, thick, warm and friendly

since then, I have always been very fond of "wood", and the habit of "loving wood and using wood" has been used and has not changed until today

the sound frame made of iron plate and the granite placed on it act like a "base" of the CD player. Its purpose is to avoid the interference and influence of external vibration. The purpose of the iron block placed on the CD player is to form a relatively stable shock absorption "whole" between the CD player and the granite and iron plate sound frame

at the same time, the purpose and function of the wool felt placed between granite and granite and between wood and wood are to "absorb" the vibration of wood and marble caused by the operation of CD player turntable, as well as the interference and influence of external vibration

between wood and granite, between granite and iron plate sound frame, and between CD player and wood and iron plate, the three-point grounding method of placing three pieces of wool felt is more conducive to the full resonance and absorption between "wood and wood", "granite and granite", so as to achieve a balance point, Finally, those harmful vibrations from themselves and from outside will be completely absorbed and dissolved. In other words, through this multi-level shock absorption and shock absorption treatment, it is difficult for the vibration from the outside to interfere with and affect the CD player again; And the movement of the CD player itself will be absorbed and dissolved, so this can make the playback sound quality of the CD player cleaner, mellow, natural and human

some people say: it is forbidden to put heavy objects above the CD player, otherwise, the sound will become very mechanical, dull and lifeless. If only some heavy objects are placed on the top of the CD player, but no other supporting treatment work is done, perhaps this statement should be reasonable. However, with a processing method like mine, it will never appear the sound performance of "mechanical, dull and lifeless"

the reason is: to do a good job, it needs an operation system that can be matched with it. This is like the Chinese chess "car, horse, gun" are all Wulin masters, but if they fight alone, that kind of power and lethality will be greatly weakened; Only when the "cars, horses and artillery" are combined into a unified action and fight side by side, can they show great strength that can be invincible and invincible

objectively speaking, there are many ways to match and adjust CD players. But the key point is to establish your own appreciation taste and aesthetic pursuit. If you don't know or can't help your appreciation taste and aesthetic pursuit at all, you won't be able to match the adjustment equipment and its sound

the purpose of this CD player matching and adjustment method is very clear: to try to eliminate the interference and influence of external vibration on the CD player; Thus, the sound of the CD player becomes Fuller, thicker, warmer and mellower

the matching and adjustment method of power amplifier

the matching and adjustment method of power amplifier is roughly the same as that of CD player. In two pieces 550mm (wide) × 350mm (deep) × 25mm (thick) marble 2. Domestic exchange papers must be reviewed by the confidentiality Department of the unit and issued a certificate of non confidentiality; Three pieces of 50mm (square) are placed between them × 10mm (thick) wool felt, in contact from front to back; Three chess pieces are used between the marble and the floor to form a three-point grounding from front to back

two 430mm wide blocks are placed above the marble × 330mm (deep) × 20mm (thick) pine board, and a 430mm (wide) pine board is placed between the two pine boards × 330mm (deep) × 10mm (thick) wool felt; 50mm (square) is also used between pine board and marble × 30mm (thick) wool felt is in three-point contact from front to back. The power amplifier is directly placed on the pine board

the purpose of marble as the base is to prevent the interference and influence of external vibration on the power amplifier, and at the same time, it can also make the power amplifier have a relatively stable base, so that the power amplifier can be more closely integrated with wood and wool felt, and fully resonate and absorb, so as to achieve a balance point

the main purpose of this is to "absorb" the vibration from the power amplifier itself and the outside world. At the same time, it can also resonate with the power amplifier through the resonance generated by the vibration of the board, so that the harmonic component of the board is also integrated into the harmonic component of the power amplifier, so that the sound color of the power amplifier becomes Fuller, mellow, warm and plump

in a word, the matching and adjustment methods of power amplifier and CD player are basically the same, only because the sensitivity and improvement effect of the back-end device itself for matching and adjustment are not as high as that of the front-end device, so the specific matching and adjustment methods and methods are not as complex and exquisite as that of CD player

matching and adjustment method of loudspeaker

loudspeaker foot rest is designed and made by myself. 300mm (square) is used for the upper and lower bottom plates of the speaker tripod × 20mm thick iron plate; The two iron plates are connected by 35mm diameter iron columns with threaded threads; After threading the lower ends of the three iron pillars, use a 20mm diameter refined brass pyramid sleeved with threads to connect with the iron pillars, and the other end of the pyramid is grounded

on the bottom plate under the sound box tripod, multi-layer and multiple pieces of discus with different diameters and thicknesses made of iron plates are placed. The discus are also connected with wool felt, and the top one is connected with 5mm thick insulating pad. The purpose of this is to make the speaker stand more stable, so as to avoid the interference and influence of external vibration on the speaker

in my opinion, in addition to the function of supporting the speaker, the speaker tripod also has the function of adjusting the resonant frequency of the speaker and improving the low-frequency resonant point in the speaker

because the speaker has the largest distortion coefficient in the sound system