Everyone should know that audio equipment is afraid of vibration, which will affect the sound quality. Vibration sources that affect audio equipment include drive motors, transformer magnetic induction, and speaker reproduction sound waves. In order to avoid the impact of vibration on the playback sound of the equipment, in addition to the shock absorption and shock absorption measures taken by the equipment itself, various shock absorption equipment also came into being, and there are many types, but generally there are hard angled spikes and soft Two types of shock-absorbing pads can further eliminate the impact of vibration on audio equipment. Shock absorbers made of various shapes and materials can conduct, isolate and absorb the vibration of certain frequencies in the audio equipment itself, the carrier (ground or table) and sound waves, thus eliminating the impact of vibration on the sound. In nature, each object has its own inherent resonance frequency. Due to the different density of each material, their natural resonance frequency is also different, and the transmission performance of each vibration frequency is also different. Therefore, for the shock absorbers, the physical properties of the materials used are crucial. At present, there are roughly five kinds of materials for making shock absorbers: ①High-elasticity and low-damping materials, such as aluminum alloy, stainless steel and ceramics, etc. The sharp peak shape of this material, the vibration transmission capacity varies greatly with frequency around 40Hz, and the transmission capacity is softer at high frequencies Is high ② Medium damping materials with medium elastic coefficient, such as wood, etc., whose vibration transmission capacity is between metal and rubber; ③ Low-elasticity and high-damping materials, such as rubber, have a fluctuating transmission capacity around 200 Hz, which fluctuates with frequency; ④ Ultra-low elastic coefficient materials, such as sponges, whose vibration transmission capacity decreases steadily as the frequency increases, has little effect on frequency changes, but is not easy to transmit high-frequency vibrations; ⑤ Composite materials, such as stainless steel and rubber, have both the ability to transmit vibration. Foot nails, tripods, etc. use appropriate media and geometric shapes to reduce the contact surface of the audio equipment shell and the carrier to a minimum, creating an acoustic high-impedance area, which produces isolation, or vibration of the audio system "Mechanical ground". In addition to the rigid pyramid foot nails, the vibration of the equipment itself can be derived, and the vibration of the equipment can be blocked from the outside, so that the influence of the internal and external vibrations of the audio equipment on the sound quality can be reduced. An effective shock-absorbing foot peg must convert vibration mechanical energy into heat energy while transmitting vibration. Pyramid spikes made of different materials have their fixed resonance frequency, and each has advantages and disadvantages, which should be considered when using it. The shock-absorbing pad is used to absorb the vibration of the equipment. The foam pad, rubber pad, plastic pad, and fluff pad can be divided into different materials. To obtain a good shock-absorbing effect, you should choose a shock-absorbing pad that can absorb the main interference frequency band. Ultra-low frequencies (below 10 Hz) below the audible frequency are absorbed to improve the clarity of the sound. The shock absorbing pad is particularly suitable for LP turntables and laser players. The effect can be described as immediate. For example, after placing the shock absorbing pad under the laser player, the replay sound quality will be significantly improved, the bass is tighter, the sound image is focused better, and the human voice is clearer. The shock-absorbing pads made of different materials have different frequencies and rates of vibration transmission, which is the key to selection. If a thick stone material is used as the base, then a soft shock-absorbing rubber pad is placed on it to have a better effect. Pyramid and shock-absorbing pad can be used in combination, both of them can be used together. The rigid pyramid allows vibration to be effectively transmitted. When the vibration is transmitted to the shock-absorbing pad, the mechanical energy of the vibration is converted due to the collision between the molecules of the high-damping interlayer material. For thermal energy, the vibration energy will not accumulate near the cone, and use different materials with different resonance frequencies and different damping characteristics for different frequencies, so that this combination can have a wider frequency band absorption and damping, thus receiving To better results. Regarding the use of pyramid feet, according to various experiences, because the vibration amplitude of each point on the material is different, when the pyramid is placed at the bottom of the audio equipment, the effect is different when it moves back and forth. Usually, three pyramid foot nails are used, placed in a triangle, and the best position is obtained by the experimental method. The effect of the pyramid foot nails is most obvious with laser players and speakers. When the pyramid foot nails have not been commercialized, audio enthusiasts often use inverted high-glass wine glasses or drum-shaped elephant chess pieces to place them under the equipment as shock absorbers, and can also receive the same effect of different music. The shock absorption of audio equipment can usually be divided into two types. One is to use a solid wooden cabinet or metal cabinet to place the equipment as a support, and the other is to use foot nails, shock absorption pads or other things to connect the equipment and the support, and The frame is isolated from the ground. However, the sound characteristics of audio equipment are endowed by the designer, so not every equipment can be suitable for all kinds of shock absorption equipment, which shock absorption method should be used according to the actual situation. A large part of the audio equipment is used for replaying music. Adjustments and other accessories only change the effect, but it is impossible to change the essence. Therefore, it is necessary to stop it and not reverse it. Ei 86 Transformer,Ae86 Transformer,Transformer 86,Ei86 Audio Transformer Guang Er Zhong(Zhaoqing)Electronics Co., Ltd , https://www.gezadapter.com
April 19, 2024