How to change from speaker entry to master--Continued

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How to change from speaker entry to master--Continued

                 How to change from speaker entry to master?


Second, judge the pros and cons of speakers from technical indicators


As mentioned above, there is usually a technical guide label on the back of the finished speaker: the content is nothing more than the speaker's frequency range, sensitivity, carrying power and impedance. Among them, the sensitivity rate is the most important indicator of the speaker, which determines to a large extent what kind of power amplifier the box should be equipped with, how much power is needed to push and so on. The sensitivity of most listening-grade home speakers is between 86-92dB. For the same power amplifier, at the same volume (for example, when the volume is turned to 10 o'clock), the higher the sensitivity, the louder the sound. The power requirements and requirements of the power amplifier will be lower. This is what people often say: This pair of speakers is easier to push. Many professional speakers used in commercial OK halls have a sensitivity of more than 100dB. No wonder many people feel that when they go to OK halls to sing karaoke, the sound is very beautiful, and they can get a lot of volume without any effort. But you must never think that the higher the sensitivity, the better. In fact, speakers with a sensitivity of more than 92dB are lighter and thinner metal cones, PP cones, etc., which will damage the control of the power driving speakers, thereby As a result, the sound quality is too thin, pretty, exaggerated, and tough, and a lot of music details and charm are missing. Not suitable for Hi-Fi listening. Many famous speakers with thick, soft sound and full of musical taste usually have relatively low sensitivity. For example, the sensitivity of top speakers such as ATC, Italian piano, and Zhuoli is only 82dB. This type of speaker is often extremely difficult to serve, and a giant power amplifier with a large output current is required to make it work in the ideal linear region, and the cost will never be small.

DEBUG comment: Most multimedia speakers use very high-sensitivity speakers. In fact, an important reason is that low-sensitivity units require higher-power amplifiers to push, and the increased cost of the amplifiers is not a little bit.

The other most important indicator is the frequency range. For example, the frequency range of a bookshelf box is 60Hz~20KHz±2.5dB, and 60Hz represents the extension value of the speaker in the low frequency direction. The lower the number, the better the low-frequency response of the speaker: 20KHz represents the high-frequency extension value that the speaker can achieve. The higher the number, the better the audio characteristics. The suffix ±2.5dB indicates the magnitude of the distortion in the above-mentioned frequency range. The smaller the distortion, the flatter the frequency response curve. The distortion of some speakers is ±3dB, and its frequency range should become wider. Some speakers do not indicate this index, the frequency extension range will become very wide. For example, if the No. 1 compass box does not indicate that the distortion is controlled within plus or minus 2.5 decibels, the frequency range can be marked as 40Hz~23KHz. It should be pointed out that it is meaningless not to mark the frequency range of the distortion degree. If the manufacturer knowingly commits the crime, it can only be suspected of bad intentions and deliberately deceived consumers. At the same time, it also shows that the speaker indicators are not standardized and the manufacturer lacks confidence in their products, making it difficult for people to buy with confidence.

Carrying power is a reference index of speakers. It is expressed in watts. This index does not indicate the quality of the speakers, but only provides a reference for the selection of power amplifiers: for example, the carrying power of a pair of speakers is marked as 10~200W , That is to say, the power amplifier required to drive the speaker must have an output power of at least 10W, but do not use an amplifier greater than 200W for full power output. Otherwise, there may be concerns about burning the box. Generally speaking, home speakers will never have the fear of being unable to push them. There are only questions about whether they are pushed well or pushed well. The carrying power of less than 200 watts is much more than the use of ordinary households. Do not deliberately pursue too high. .

Another indicator of the speaker is the impedance value, which is generally 8Ω as its nominal value. The impedance value of most two-way bookshelf boxes is 8Ω. Multi-unit multi-frequency floor-standing speakers also have 6Ω and 4Ω. The smaller the impedance value, the larger the current that needs to be driven, and the higher the power amplifier power required. In my opinion, it is better to choose a better amplifier with 8Ω impedance for home speakers.

Third, a good speaker should have obvious personality

In modern audio equipment, speakers can be described as the oldest and magical member. Some people say that it has "spirituality" and "life", and that it is the sediment of a country's national style and history and culture. Indeed, as far as brand-name speakers are concerned, speakers made by different countries and nationalities are all branded with the cultural literacy, natural endowment and character traits of the nationals of the producing country. Especially the higher the quality and the higher the grade of speakers, the more obvious this personality characteristic will be. Secondly, for users, the same excellent speakers with different personalities still have the question of whether they have the right taste and whether they like a certain style. The so-called "radish and cabbage, each has their own love", some people like the wind and passion, the enthusiasm and the heroic demeanor, some people like the gentle and quiet hermit character: some like the magnificent symphony, heavy metal percussion, rock music: some prefer the little ones. The flowing pastoral classical music, the solo music of the elegant and charming, and the sweet and heavy vocal replay... It is certainly a good thing to be able to choose the ideal speaker according to your own taste. If you don't understand the reason, people just choose the right speakers that match their tastes, it will be very disappointing! After all, this investment is not cheap. Therefore, I suggest that you learn more about it, listen to it more, run more authentic audio boutiques, listen to the opinions of friends, and listen to the opinions of experts before purchasing. At the same time, you have to be clear about what style you really like? May as well ask yourself a few more times, what on earth did we buy this speaker for? listen to music? Watching a video? Sing OK? still is……

As far as the style of the speakers is concerned, the so-called American sound, British sound, European sound, etc. are popular in the audio industry nowadays. American speakers focus on strong power and huge dynamics, especially the speakers produced in the western United States: such as JBL, BOSE, Genesis (Genesis) and so on. Often show a kind of free and easy bold, rugged and generous tone personality. This may have something to do with the heroic temperament of the American western cowboys running wild on the North American grasslands. The United States has a vast territory, with mountains and mountains on the west coast, lush forests, beautiful blue sky, and abundant products. Coupled with the wild and unruly personality of the western cowboys and the penetration of Hollywood culture and art, the speakers produced in the west have a bright and beautiful sound, a clean sound, and a wide open. The bold and rugged reveals a kind of light-hearted wine and self-confidence. The surplus of various indicators is very large, especially suitable for rock, jazz and heavy metal percussion, professional OK halls and other occasions. But in terms of violin solo and classical string music, the musical taste is slightly weaker. However, speakers produced in the eastern United States are more influenced by British and European civilizations due to geographical environmental factors. In addition, the famous Philadelphia Symphony Orchestra advocates classical symphony, and every year it affects the regional culture with a large number of performances. Therefore, the speakers produced in the eastern region, such as INFINITY (Yanfei Lishi), Westlake Audio (Westlake) and other brands, have both a soft and delicate style with a broad and bright style. Regardless of the music's analytical power, sense of speed, sound field positioning and pine fragrance, they are obviously different from western speakers and are popular in Europe and the Far East.

British speakers have a typical European royal blood, with a soft and sweet tone, a dignified and elegant shape, and a glamorous look. The natural veneer reveals a gentle, noble and gentleman demeanor. Several world-class classic car speakers-Rogers (Jazz), Spendor (Spendor), HARBETH (Sunny after the rain) were born here. Coupled with the past glory of the never-setting empire and the subtle influence of medieval civilization, the damp and foggy geographical environment of London and the pastoral pastoral of small bridges and rivers, the British voice is gentle, sweet, delicate, stable, and calmly negotiated. It has a very high status in the field of home Hi-Fi and even Hi-END, and is most suitable for the performance of classical string music and vocal reproduction. It is a pity that the effect is slightly inferior in the performance of large dynamic bursting scenes and low-frequency volume.

The German speaker fully embodies the meticulous, rigorous and self-discipline spirit of the Germanic nation. The tone is natural, neutral and peaceful, clean and refreshing. Especially well-known in the industry for its exquisite workmanship, it is breathtaking. But strictly speaking, the sound of the German box is slightly cool and tough, which is more suitable for the playback of popular music.

Other European sounds such as France, Denmark, Italy, Sweden, Norway, etc., are permeated with the wit and romance of the French, the artistic atmosphere of the Italian Renaissance, the lively and cheerful and extremely exquisite traditional craftsmanship of the Nordic people: the sound is pure and natural. , Mid-to-high frequency is slightly exaggerated, but very musical. And has very good compatibility, it is the best choice for home Hi-Fi/AV dual-use type.

As for domestically produced high-quality speakers, there should have been a "Chinese Voice". Recently, many experts and scholars are also writing articles to hype. It’s a pity that China’s audio industry started late, including most manufacturers that are already well-known in the Hi-Fi enthusiast circle. It was only in the mid-1990s that they began to intervene in real high-fidelity audio. At present, if the original "theory and practice" has not been completed. In the stage of capital accumulation, it is difficult to use any "voice" to form one's own unique style. However, in just a few years, domestic boutique speakers have made a qualitative leap. The author secretly believes that a small number of domestic boutique speakers have formed their own prototypes, but they can only be compared with famous brands in a certain country. For example, Huiwei resembles American sound. The Sound of Beauty series and the Xindak classic series, and the compass series are more reminiscent of the British sound (but maybe the overburden and speed parts are slightly stronger by the British authentic goods). And Xiaoxuanfeng and Jinlang are more or less stained with European style: only the "Canghailongling" bookshelf box carefully brewed by Mr. Zhang Bailiang has a unique flavor, a gentle and neutral tone, delicate and elegant, gentle but unassuming, and a more unrestrained appearance. It is because of the traditional Chinese soil paint that has been polished in multiple layers, it is antique and natural, and it really makes people feel a little "Chinese sound". I believe that it is based on the five thousand-year history of Chinese civilization, the ancient rhyme of the Bianzhong from the Xia, Shang and the Tang Dynasty, and the hugely-produced Gongyan music, as well as the unique implicit, inner, rich and colorful feelings of the Chinese people, as well as Confucianism, Buddhism and Taoism. It is believed that in the near future, there will be a world-recognized application of the "Chinese Voice".

Fourth, a good speaker should be very durable

I wonder if you have ever experienced this: when you turn on the audio to enjoy music enthusiastically, the sound is good at first hearing, and the sound is powerful enough, especially the middle and high frequencies are bright and moving, and the low frequencies are also satisfactory. But after listening for a while, I felt uncomfortable. I was so "tired" that I had to shut down and leave. This kind of sound box that makes people feel "tired" does not keep guests away, because it makes people feel "noisy" and annoying. If the speaker is noisy, it means that the distortion of the box is large and it is not tolerant of hearing. It certainly won't be a good speaker.

Listening to a good quality speaker is like tasting a 30-year-old flower carving daughter line buried underground, and the owner feels sweet and refreshing, and the beer is long. That kind of "sweet" and "warm" music charm will make you forget time, space, and even your own existence and revel in the ocean of music, no matter how long you listen to it, you will never get bored.

Good speakers have very low distortion. So no matter the volume, it will make you sound very ears. Even if you turn on the volume to full power, the speakers burst to earth-shattering, and the low frequency rolls like thunder in midsummer. It will only make you feel close to the natural lifelike and even terrifying shock, but it will never make you escape from the sound of the ears. .

Generally speaking: speakers with thin sound, colder tones and harder tones, and "fast" speakers are not tolerable. It is certain that they are all caused by the thin sound of the cabinet, poor sound absorption processing, oversimplification of the crossover, and low-grade speakers. Naturally, it is not a good speaker. A good speaker is very durable. It can not only retain the guests, but the longer the listening time and the more familiar it is, the more ear-sounding the sound. No wonder so many audio enthusiasts are so obsessed with it that they have a fever!



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