How to burn headphones and precautions Sennheiser headphones latest quotation

For some friends who are passionate about music, headphones are a must-have in their lives. Then some of us will mention a word called "burning headphones", which is to improve the secondary performance of headphones. To achieve very good results, how do you burn in headphones? And what should you pay attention to? Today, the editor brings you how to burn in headphones and precautions and the latest quotation of Sennheiser headphones. Let’s learn about it together.

How to burn headphones and precautions

(1) How to burn headphones

The theory and procedure for burning headphones are no different from burning speakers. But you need to be more careful when burning headphones than when burning speakers. If it is not cooked well, it may shorten the service life of the earphones and even cause permanent physical damage to the earphones, such as accidental power overload, excessive amplitude causing the diaphragm to flap, etc. When some friends were using SENNHEISER headphones, they had a tragic situation where the glue that fixed the voice coil lead came off and hit the diaphragm due to excessive amplitude. This was undoubtedly because the amplitude of the diaphragm was excessive due to excessive volume. large and caused. The diaphragm of the earphones has the same service life as the speaker of the sound box. However, because the amplitude of the diaphragm of the earphones is very small, it is much smaller than the amplitude of the diaphragm of the speaker, so the life of the earphones will be longer. Normally If used, there will be no problem for decades. However, if you want to quickly burn-in the headphones and drive them with high power for a long time, the service life of the headphones will inevitably be shortened. If the headphones are cooked improperly, it is likely to cause irreparable physical damage to the headphones, so the appropriate volume is required. Keeping your headphones in is crucial.

Many friends who buy new headphones like to use frequency scanning software to listen to the full-frequency response, but they often feel that the frequency response of their newly purchased headphones is uneven. Why? This problem is easy to explain. If the vibration amplitude of the headphones is very consistent, then the sound you hear must be uneven. This is because human ears have different sensitivity to vibrations of different frequencies. It is incorrect to use this method to test the frequency response performance of headphones. Moreover, you should avoid using a single frequency signal to test headphones, which can easily damage the headphones, especially high-sensitivity Walkman-specific headphones and some monitoring headphones. In the selection of music for the second and third stages, the music used to burn the earphones should be less dynamic music. The higher the impedance and lower the sensitivity of the earphones, the longer the burning time should be. The overall burning time of the earphones The machine time should be no less than 50 hours.

There are two other issues that should be paid attention to when burning headphones. One is to burn headphones, especially high-end headphones, carefully. Do not burn them with electronic music. The bass component in electronic music is too strong. , for highly sensitive headphones, overload may occur, causing irreparable physical damage. All in all, it’s full of flavor when simmered slowly. Another point is not to use single-frequency sound signals to test headphones, especially low-frequency signals. First, the human ear is very insensitive to low-frequency signals. For example, if you can hear a 20Hz signal, then the power the headphones can withstand It must have been overloaded, and some low-power headphones may have been burned out or have voice coil deformation. 20Hz is a limit. Between hearing and not being able to hear, some people with poor ears cannot hear.

(2) Slowly burn out the sound to produce good sound

The only generally applicable method of burning out headphones is gradual. Start with softer music and let the headphones soothe for 10 seconds at a lower volume. -30 hours, and then use ordinary music (except rock and dance music) to burn for 100-200 hours at a medium volume; if you listen to the treble at this time, it will no longer be harsh, it will become round and natural, the midrange will be warm and friendly, and the low frequency will no longer be If it is a lump of rumbling and full of details, then congratulations, OK. You must not be eager for quick success.

You should pay attention to two points during the cooking process: First, do not work continuously for too long! Because the voice coil has resistance, it will generate heat after working for a long time, and maybe even burn the voice coil! It is best I stop for a few minutes every two hours and then continue.

Second, the volume must not be too high. The earplug diaphragm is a very fragile material. If the volume is high, the movement of the voice coil will be large, which will pull the diaphragm violently, causing the voice coil to loosen, the diaphragm to deform or even tear, etc. wait.

The main purpose of burning headphones is to burn the diaphragm of the headphones. At present, the thickness of the diaphragm of electrostatic headphones has been as thin as 135 microns, and the diaphragm of dynamic headphones is only a few microns to more than ten microns (we The diameter of hair is approximately 60 to 90 microns). The diaphragm itself has internal stress during the manufacturing process, and assembly stress is generated when the voice coil is bonded and fixed to the frame. What we call earphones is to make these stresses gradually disappear, so that the diaphragm gradually adapts and emits good sound. sound process.

I think that although audio equipment is not engineering machinery or iron cars and horses, there are similarities. Good things require hard work, and good results come from slow cooking. It is better to divide the cooking process into five steps: relaxing muscles, unblocking collaterals, practicing martial arts, fighting, and making a debut. Take headphones as an example:

1. Shujin uses one-third of the normal listening intensity to drive the headphones for 12 hours (it is better to use a 100~15000Hz/5s sweep signal);

2. Tongluo uses two-thirds of the normal listening intensity to drive the headphones for 12 hours (it is better to use a 50-18000Hz/3s sweep signal);

3. Use normal listening when practicing martial arts Drive the headphones for 72 hours (it is better to use 20~20000Hz/2s sweep signal);

4. Da Lei uses one-third of the normal listening intensity to drive the headphones for 24 hours (use 18~22000Hz /1s sweep signal is better);

5. After debut, it enters the normal use stage.

The first step: when you get a new headset, you need to boil it to make the diaphragm loose and not tight. As we all know, general headphones have dynamic open coils. The principle of sound generation is that the coil emits magnetic fields of varying sizes, thereby pushing the diaphragm and using the amplitude of the diaphragm to emit sound. (This principle does not apply to electrostatic headphones) In other words, the final formation of sound is emitted by the vibration of the diaphragm. What we often call "burning in headphones" also refers to the diaphragm of "burning in headphones".

The new headphone diaphragm is like an unused rubber band, not elastic enough and the stroke is too short. If we listen to some heavy metal at high volume at this time (for example, our deputy moderator Glacier, it really made him uncomfortable for many days as soon as he got the headphones. He is an avid metal fan, but he comes to listen to some pot music like Ferry Machine, really hard work), the final result must be broken sound. The purpose of the first step of burning-in is revealed: to cause a rapid aging process of the mechanical system of the earphones through artificial methods.

In this step, there are many ways to burn in the machine. I will give them one by one:

① Software method: Download a software and use white noise to cook;

②. Radio method: adjust to a place where there is no signal, and the noise is also called white noise;

③. Music burn-in method: use some music, the best burn-in method The music is the ferry (other music is also fine, as long as the volume is not too loud).

The second step: is to make an aging headset (referring to the mechanical system aging after the first step) adapt to sounds of various frequencies as soon as possible and produce better sound from the surface. When we listen to music, we generally have preferences, either with more treble or more bass. Even if we listen to everything, some frequencies are rarely used. This is the key to making a good sound. The only way is to use software, select the signal generator, and then put it on for 3 hours continuously. When you have time, cook it. After more than ten or twenty times, it will be OK.

The newly purchased headphones sound good. However, compared with the earplugs of the same model that my friends have been using for a while, they are always not satisfactory. The bass is tight and stiff, the midrange is not soft and full enough, and the treble is full of burrs. Why is this happening? Because this newly purchased headphone has not been burned in yet!

(3) TestToneGenerator method for burning headphones

In the past, a very simple method was popular, which was to directly connect Turn on the radio, tune to a frequency with no radio station, and use the hiss (pink noise) from the radio to let the headphones work for a long time to achieve the burn-in effect.

But it’s not obvious with this method. It’s faster to just put on headphones and listen to music. It is also possible to use a special frequency generator to generate a certain fixed or scanning frequency and then input it into the earphones. This method has a more obvious effect and can also shorten the time used. But most players do not have this type of equipment, so what should they do? What is the most efficient way to burn headphones? Today, with the rapid development of computers, many enthusiasts have compiled some programs and use computers to process some Waveforms and frequencies are output through the sound card to achieve the effect of some real frequency generating instruments. This is the so-called virtual instrument. There are many frequency test software like this. The one I am using now is called TestToneGenerator, which is easy to use, has specific functions and is small in size. Let’s talk about how to use it to burn headphones.

Bad-in machines generally use low frequency. So, just set the TTG to low frequency. There are two methods, one is to use fixed frequency output; the other is to use scanning frequency. The effect is almost the same. The method to burn in the fixed frequency is to enter a value in the FREQUENCY of the fixed frequency output (CONSTANTTONE), usually 20 to 50. You also need to select LOOP, and the DURATION time does not matter. Use SINE (sine wave) gain for the waveform. to 0DB, then you can plug in headphones to the sound card and let it work for a long time.

The scanning frequency method is to use the INITIALFREQUENCY of the sweep frequency (SWEEP) to enter the starting frequency and the FINALFREQUENCY to enter the end frequency. Generally, I think it is more appropriate to go from 20HZ to 100HZ. The DURATION time is used to set the scan once. time, then other operations are the same as fixed frequency. Many friends have asked me why I only use low frequency. In fact, you can know why from the burn-in principle described above.

You should pay attention to two points during the cooking process: First, do not work continuously for too long! Because the voice coil has resistance, it will generate heat after working for a long time, and maybe even burn the voice coil! It is best I stop for a few minutes every two hours and then continue. Second, the volume must not be too loud. The earplug diaphragm is a very fragile material. If the volume is high, the movement of the voice coil will be large, which will pull the diaphragm violently, causing the voice coil to loosen and the diaphragm to deform or even tear. etc. Especially with fragile earplugs like the 888, you have to be careful. When adjusting it correctly, just adjust it so that you can clearly hear the sound waves or vibrations of the air. Never adjust it too high and you will hear the diaphragm vibrating violently. Protect your headphones carefully.

The last thing I want to emphasize is that not all headphones will sound better after being burned in. This depends on the quality of the headphones themselves. The effect of some headphones after being burned in is not very obvious. This is also normal. The purpose of our burn-in is to help it quickly go through the aging adjustment period and stabilize the physical properties of its components. The vibration system of headphones that have not been burned in may be tight and hard. By burning in the headphones, the vibration system can relax and the parameters will become more stable, so the sound quality will become better. Also, don’t overthink the effect of boiling. After boiling for a period of time, the effect will not be obvious if you boil it again and again. The greater the hope, the greater the disappointment. To have good sound, it mainly depends on the audio source and other equipment.

The latest quotation of Sennheiser headphones

SENNHEISER/ Sennheiser IE60 in-ear headphones HIFI mobile phone headset 1649.00

Ice blue SENNHEISER/ Sennheiser IE60 headphones Meixingdexing in-ear earphones 798.00

SENNHEISER/ Sennheiser Momentum In-Ear in-ear wooden bun earphones 789.00

SENNHEISER/ Sennheiser MX375 mobile phone earphones heavy Bass sports headphones erji149.00-166.00

The above is the introduction compiled by the editor on how to burn headphones, precautions and the latest quotation of Sennheiser headphones. I hope it will be helpful to you.