As a terminal device for audio frequency, the speaker sounds like a human voice, which largely determines the quality of a set of sound. To draw an analogy: It is hard to imagine a person as strong as a cow but with a congenitally inadequate voice and incomplete pentatonic singing a beautiful song? It is therefore no exaggeration to say: Choosing a good pair of speakers is the key to the success of a set of sounds. However, looking at the current audio market, there are hundreds of finished speaker brands, including many well-known international brands: such as American BOSE, JBL, INFINITY, Westlake Audio, and PolkAudio. (Sound): ATC (Ace), B & W, Tannoy, MonitorAudio, KEF, HARBETH (Denmark) DYNAUD10 (Dana), DALI (Danny) ), Jamo (Junbao): German Heco (deco), Mili (Maagnat), ELAC (will); French Dream Voice (VIS10NACOUSTIQUE), JMLab (Jinglang): the domestically produced fine voice of the God of War The series, Jin Lang, Hivi, New Dirk, Gospel, Little Cyclone, etc., are numerous and numerous. The quality is uneven and the price is very different. Even for speakers of the same brand and series, the sound quality is often a little higher, and the price will rise several times. This is because since humans invented the electronic audio engineering, the only speaker has been the slowest progress and the weakest technology. According to the British "Fever Book": A well-known British long-term Evergreen tree Rogersls 3/5 has been launched since the 1960s and sold well for nearly 40 years. Its pure and elegant tone is still a lot of senior Hi-Fi. Enthusiasts are regarded as hot and sought-after goods. Today, with the high development of audio technology, it is really puzzling. So don't underestimate the creation of speakers, don't think that speakers are just a few speakers and several Hi-Fi or Hi-END boxes. The knowledge of the speaker is too big to be written, and there are many opinions about it. Just like the dispute between Chinese medicine and Western medicine in the medical field, or if it is to cure some incurable diseases: if you can't cure the disease clearly, you can't understand it if you cure it well. However, for consumers, we only need to learn how to identify and select. So is there a simple and convenient way for most inexperienced consumers to learn not to judge the goodness of a pair of speakers by relying on the "seven points" of the speakers summarized below for you, not by expensive prices or luck Bad? The answer is yes, and let me tell you carefully:
1. Preliminary understanding of the speakers before the audition
The initial understanding of a pair of speakers can be identified by the steps of "viewing, tapping, knocking, and identifying": that is, one view of the process, two pounding weights, three knocking on the cabinet, and four identification plates. Viewing technology is to judge the quality and quality from the first appearance of the speaker: the speakers made of natural wood are of course the best. Many world-class premium speakers of high price, including Italy ’s Chario and Guarneri Homage (named piano), etc., but due to environmental protection, lack of resources, difficult processing technology, long time and other factors, such good boxes will never be popularized as "rejoice" shampoo everywhere, and the price is definitely not low. Therefore, the common speakers are decorated with a thin layer of wood skin on the surface of MDF medium density fiberboard: speakers with real wood veneer exterior decoration, especially such as rosewood, bird's eye, pear, walnut, zhennan, red oak Such rare wood veneer, its natural wood grain visual effect is excellent, feel smooth and comfortable. Especially those who polish the piano lacquer with multiple layers of symmetrical butterfly patterned real wood veneer can be regarded as middle-to-high-end boutique speakers, with very few counterfeit products. Boxes made of PVC (Sapele) plastic are skinny goods. Although the workmanship is fine, it is best to count only the low-end goods. Although the box decorated with this patterned paper veneer seems to be extreme, pay more attention to whether the veneer seam behind the box body and the digging process of the installation position of the speaker are accurate. Counterfeit and shoddy products generally do not pay attention to these details, so you can judge correctly with a little care.
The second is the weight: the good speakers are mostly built with high-quality MDF particle boards of 18 to 25mm, and the high-end flagship speakers are built with overweight solid wood or multilayer composite plywood such as rosewood and yellow pomelo, so the weight is very amazing. Often the net weight of a pair of speakers is 50 to 60 kilograms. Most of the low-end and high-end goods use fluffy particleboard, and counterfeit and shoddy products use low-quality paper glueboard, so the weight is generally lighter. In the audio industry, it is often said that "professionals look at quality and laymen weigh", heavy speakers are definitely better than light speakers. However, it is necessary to be alert to unhealthy merchants pouring sand stone cement on the bottom of the sound body to gain weight to deceive consumers.
The third is knocking on the box: tapping the top, bottom, left, right, and front baffles of the box with the knuckles, all sides of the box make a solid and slight brittle sound, the texture of the board is hard and thick, there are multiple ribs inside, the box structure Reasonable and strong, with various effects such as sound insulation and standing wave prevention measures. This kind of box has high processing cost and great difficulty, so there are few fake and shoddy products. If the box is tapped with the knuckles to make a "pop, pop" air noise, it means that the plate is too thin, the material quality is too poor, and the structure is unreasonable. And there is no sound absorbing material or ribs inside, which leads to a lot of diffuse reflection and standing wave formation in the box. If you buy this kind of speaker, you can never get a good replay effect.
The fourth is to recognize the nameplate: the really good speakers are quickly and well-made gold-plated or chrome-plated nameplate marks, there are generally distinctive trademarks, companies, names, places of origin, and corresponding indicators on the nameplate. The import box has English such as: Made in xxx or Manufacture and corresponding trademarks, speaker indicators, etc. If there is only Designin ...... (XX design) or ambiguity, only one country name is marked, even the simple and extremely rigorous basic indicators can neither see the origin, nor the manufacturer, and the trademark is not registered. . Most of these three non-products are counterfeit and inferior. Famous brand speakers attach great importance to the brand image and corporate visibility, so the nameplate markings attached are very standardized and exquisite, and all indicators and company names and places of origin are available. Some nameplates are even made of thin metal plated with 24K real gold, and the fonts on them have a bumpy feel. The product not only has a factory date, a production serial number, but also a paired serial number and an ID card. For this type of speaker, as long as the price is reasonable, you can generally choose it with confidence.
2. Judging the quality of the speakers from the technical indicators
As mentioned above, there is usually a technical label on the back of the finished speaker: the content is nothing more than the frequency range, sensitivity, carrying power and impedance of the speaker. Among them, the sensitivity rate is the most important indicator of the speaker, which largely determines what kind of power amplifier should be selected for the box, how much power is needed to push, and so on. The sensitivity of most hearing-grade home speakers is between 86-92dB. For the same power amplifier, at the same volume (such as the volume is turned to 10 o'clock), the higher the sensitivity, the greater the sound. The lower the power requirements and requirements of the amplifier. This is what people often say: it's better for speakers. The sensitivity of many professional speakers used in commercial OK rooms is more than 100dB. No wonder many people feel that when they go to the OK room to sing karaoke, the sound is very beautiful, and they can get a lot of volume without effort. But you should 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 and the like, which will damage the control of the speaker. As a result, the sound quality is thin, beautiful, exaggerated, and tough, and there is less detail and charm in the music. Not suitable for Hi-Fi listening. And many famous brand speakers with thick and soft sound and full of music usually have relatively low sensitivity. For example, the sensitivity of top horns such as British ATC, Italian famous piano and Zhuo Li is only 82dB. This type of speaker is often extremely difficult to serve, and a Big Mac amplifier with a large output current is required to make it work in an ideal linear region. The cost will never be small.
The other most important indicator is the frequency range. For example, the frequency range of the domestic high-end Xindeke Compass No. 1 bookshelf box is 60Hz ~ 20KHz ± 2.5dB, 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 indicates the high-frequency extension value that the speaker can achieve. The higher the number, the better the audio characteristics. The suffix of ± 2.5dB indicates the degree of distortion in the above frequency range. The smaller the distortion, the flatter the frequency response curve. The distortion of some speakers is ± 3dB, and the frequency range should become wider. Some speakers do not indicate this index, the frequency extension range will become very wide. For example, if the above compass No. 1 box does not indicate that the degree of distortion is controlled within plus or minus 2.5 dB, the frequency range can be marked as 40 Hz to 23 KHz. It should be pointed out that it is meaningless not to label the frequency range of distortion. If the manufacturer knows to commit a crime, it can only be suspected of its bad intentions and intentionally deceiving consumers. It also means that the speaker indicator is not standardized, and the manufacturer lacks confidence in its products, making it difficult to make people buy with confidence.
The load-bearing power is a reference indicator of the speaker. It is expressed in watts. This indicator does not indicate the quality of the speaker. It only provides a reference for the optional power amplifier: for example, the load-bearing power of a pair of speakers is marked as 10 ~ 200W That is to say, the power amplifier required to promote the speaker must have at least 10W output power, but avoid using amplifiers greater than 200W for full power output. Otherwise, there may be concerns about burning the box. In general, home speakers will never have the possibility of being pushed, only the problem of good or bad push, bad push, the load power of less than 200 watts is more than enough for the average family to use, do not deliberately pursue too high .
Another indicator of the speaker is the impedance value, generally 8Ω as its nominal value, the impedance value of most two-way bookshelf boxes is 8Ω, and the multi-unit and multi-frequency floor-standing speakers also have 6Ω and 4Ω. The smaller the impedance value, the greater the current that needs to be pushed, and the required power amplifier power is correspondingly higher. In the author's opinion, it is better to choose a better power amplifier with 8Ω impedance for home speakers.
3. A good speaker should have a distinct personality
In modern audio equipment, the speaker can be described as the oldest and magical member. Some people say that it has "spirituality" and "life", saying that it is the precipitate of a nation's national style and history and culture. Indeed, as far as famous brand speakers are concerned, speakers built by different countries and different nationalities are all branded with the cultural qualities, natural endowments and character characteristics of the nationals of the producing countries. Especially the higher the quality, the more high-end speakers, the more obvious this personality characteristic. Secondly, for users, the same excellent speakers with different personalities still have the problem of whether they are right or not, whether they like a certain style. The so-called "radish cabbage, each has its own love", some people like the flamboyant and enthusiastic tycoon style, some people love the gentle and elegant, quiet and restful hermit character: some people like the magnificent symphony, heavy metal percussion, rock music: some people like small Flowing pastoral classical music, elegant and elegant solo music, and sweet and heavy vocal reproduction ... It is certainly a beautiful thing to choose the ideal speaker according to your own taste. If you do n’t understand it, people choose the speakers that match your tastes, which is very disappointing! After all, this investment is expensive. Therefore, I suggest that you may wish to learn more, listen 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, what style do you like? May I ask myself a few more times, what exactly do we buy for this speaker? listen to music? Watch the video? Sing OK? still is……
In terms of the style of the speaker itself, the so-called American sound, British sound, European sound, etc. are popular in the audio industry nowadays. American speakers focus on strong strength and huge dynamics, especially the speakers produced in the western United States: such as JBL, BOSE, Genesis (Genesis) etc. Often show a free and bold, bold and timbre personality. This may have something to do with the heroic temperament of the American western cowboys running on the North American grassland. The United States has a vast territory, with mountains and rivers on the west coast, verdant forests, beautiful blue skies and abundant products. Coupled with the wild and unruly character of the western cowboys and the penetration of Hollywood culture and art, the speakers produced in the west have a bright and beautiful sound, the sound is clean and clean, and the doors are wide open. The surplus of various indicators is very large, especially suitable for rock, jazz and heavy metal percussion, professional OK hall and other occasions. But in terms of violin solo and classical string music, the music tastes slightly weaker. However, the speakers produced in the eastern part of the United States are more influenced by British and European civilizations due to geographical factors. In addition, the famous Philadelphia Symphony Orchestra advocates classical symphony, which affects the regional culture with a large number of performances every year. Therefore, the speakers produced in the eastern region such as INFINITY, Westlake Audio and other brands have a soft and delicate style and a broad and bright style. Regardless of the music's analytical power, sense of speed, sound field positioning and scent, it is clearly different from Western speakers and is favored in Europe and the Far East.
The British speaker has a typical European royal blood, soft and sweet tone, dignified and elegant shape, gorgeous and gorgeous, natural wood veneer reveals a gentle and noble gentleman style. Several world-class vintage car speakers-Rogers, Spendor, HARBETH were born here. In addition to the former glory of the declining empire and the subtle and subtle influence of the medieval civilization, the humid and foggy geographical environment of London and the idyllic idyllic pastures of the bridge have created a soft, sweet, delicate, steady, and gentle negotiation in Britain. 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 and vocal playback. It is a pity that the effect of showing big dynamic burst scenes and low-frequency sense of volume is slightly inferior.
The German speaker fully embodies the meticulous, rigorous and self-disciplined professionalism of the Japanese people. The sound is natural, neutral and peaceful, clean and refreshing. Especially well-known in the industry for its exquisite workmanship, it is breathtaking. Strictly speaking, the German box sound is slightly cool and tough, which is more suitable for the playback of popular music.
Other European voices such as France, Denmark, Italy, Sweden, Norway, etc., permeate everywhere the wit romance of the French, the artistic atmosphere of the Italian Renaissance, the lively and cheerful Nordic people and extremely exquisite traditional craftsmanship: pure and natural sound , Mid-high frequency is slightly exaggerated, but very musical. And it has very good compatibility, it is the first choice for household Hi-Fi / AV dual-use type.
As for the domestically produced high-quality speakers, there should have been a "Chinese voice". Recently, many experts and scholars are also writing hype. It is a pity that China's audio industry started late, including most manufacturers that are already famous in the Hi-Fi fever circle. It was only in the mid-nineties that they began to intervene in the true meaning of 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 "sound" to form your own unique style. However, in just a few years, domestic high-quality speakers have made a qualitative leap. The author thinks that very few domestic high-quality products have formed their own style prototypes, but they can only be regarded as similar to a famous brand in a certain country. The sound of the Ares series and the new Dirk classic series, the compass series are more reminiscent of the British sound (but perhaps the bursting and speed parts are slightly stronger by the authentic British goods). While the small cyclones and Jinlang are more or less stained with a European style: only the "Cang Hai Long Tuine" bookshelf box carefully brewed by Mr. Zhang Bailiang has unique flavor, smooth and neutral tone, delicate and elegant, gentle and yet bold, and the appearance is more The traditional Chinese soil lacquer is polished through multiple layers, which is antique and natural, and it really makes people feel a little "Chinese voice". I believe it is based on the five thousand years of civilization in China, and the ancient rhyme of Bianzhong from Xia Shang to the prosperous Tang Dynasty, and Gong Yan music of the great masterpiece, as well as the implicit, intrinsic, colorful feelings and Confucianism and Taoism unique to the Chinese. The essence of traditional culture, such as "The Doctrine of the Mean", "Integration of Two into One", "Government of Inaction", I believe that in the near future, there will be a world-recognized application of "Chinese Voice".
4. Good speakers should be very listenable
I wonder if you have such an experience: when you turn on the sound and enjoy the music happily, the first time you hear it, the sound is good, 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 very tired and had to shut down. This kind of speaker that makes people feel "tired" will not stay with residents, because it makes people feel "noisy" and makes people upset. The speaker "noisy" indicates that the box is distorted and unacceptable. Certainly not a good speaker.
Listening to a good speaker of good quality seems to be like tasting the thirty-year-old daughter of Chen Huadiao who is buried deep in the ground. The host feels sweet and refreshing, and the beer is long. The kind of "sweet" and "warm" music charm will make you forget the time, space, and even your own existence and indulge in the ocean of music, no matter how long you listen to it, you will not be bored.
The distortion of a good speaker is extremely low. Therefore, regardless of the volume, it will make you sound very good. Even if the volume is turned to full power, the speaker will be shocked, and the low frequency will roll like midsummer Shen Lei, it will only make you feel close to nature, even terrifying shock, but it will never make a crackling sound that will make you escape. .
Generally speaking: speakers with thin sound, cold and hard sound, and too fast speed are not good to listen to. You can be sure that they are all caused by the thin sound of the cabinet, poor sound absorption processing, excessive simplification of the frequency divider, and lower speaker grade. Naturally not a good speaker. A good speaker is very resistant to listening. Not only can it keep guests, but the longer the listening time, the more cooked it is, and the more the sound is. No wonder so many audio lovers are so tired of being obsessed with high fever!
5. Good speakers can hear the most subtle messages in the music background
The speaker's expression of music details determines the speaker's analytical power. Boxes with high resolving power can contain huge amounts of music information, especially information about music background. So that people can not hear more music details, harmonic aftertones, and multi-angle, multi-directional, diversified, and multi-level music sound fields through the theme unit. Listening to the first "Forgotten Time" of Taiwan's hit record "Folk Song Tsai Chin" (Part No. DJCD-96108), the first few sentences are unaccompanied a cappella: "Who is hitting my window, who is stroking the strings That forgotten time gradually regained my heartlessness ... "While a good speaker is expressing this period, although the singing voice is a cappella, the details are never monotonous, during which 3 seconds, 9 seconds, 12 seconds, 17 The breathing sound between the second sentence, the tooth sound that opens the lips, and the reverberation of the tail of the human voice are as clear as Cai Qin sings to you quietly in your ear. The high-resolution speaker even allows you to hear the subtle sound of flipping the score when the band is performing and the footsteps of the player sliding gently on the ground. Don't think that the author is blowing, as long as the CD is well recorded and the playback device is of sufficient grade, everything is possible.
A good speaker can faithfully reflect and reproduce the various signal sources recorded on the disc. It can be burst to colorful, and it can be slender to a trace of tremor in the air. Therefore, prepare a CD with a large amount of music information that you can hear well on weekdays before selecting speakers. For example, Zhu Zheqin's "Yang Jinma" (part number YT-84) recorded on a Taiwan UFO record is an amazing amount of music information. Test disc. Listening to the disc, you can distinguish the snowy wind of the Everest roaring in the background through Zhu Zheqin's crystal-clear special singing. The Himalayans pushed away the firewood and started the day's work with the creaky new snow in the morning. You can even hear a few paintings of Sahuan's northern wind valley not far away. It is impossible for speakers with poor resolution to provide such a rich music meal.
Of course, when listening to the resolution of the speakers, you should be careful to use special bursting signal sources, such as blockbuster movies synthesized by artificial electronics, strongly shocked heavy metal rock music, percussion, etc. This kind of music can certainly leave a deep impression. Often suffer, but the huge loudness will mask many of the inherent shortcomings of equipment. At the same time, don't turn the volume to deafening, because the human ear has strict limits on the loudness of the sound. Once the sound exceeds the limit, the sense of sensitivity will become dull, even unbearable for a moment. There is no such thing as judging the details of music.
6. A good speaker allows you to hear accurate sound image positioning
The so-called sound image localization refers to where each musical instrument in the performance is pronounced. For example, in a large symphony orchestra, the sound image positioning speakers will make you feel the orchestra display as shown in the figure below: the first violin and the second violin group are generally located on the left side of the stage, the piano and harp are on the left, and the right side of the stage is generally It is a cello array, and later a double bass array. The center of the stage are viola array, flute, oboe, garden, big pipe, trombone, trumpet, percussion and timpani.
Good speakers can reproduce the hierarchical sound field positioning very accurately, even if you are not an enthusiast, you can also hear the sounds of various instruments from the different positions of the virtual stage in front of your eyes under the guidance of experts, not by any means. It is just a mixed melody of various sounds emitted from the sound sources of the two speakers. Better speakers, listen to them in a professional sound-checking room with strict acoustic treatment and moderate size. You can even feel the unique three-dimensional space and presence at the music concert!
Of course, as far as the average consumer is concerned, it is impossible to have such a good professional audition room for you to listen to, and you can only choose speakers under the harsh acoustic environment that the audio shop arbitrarily lays out. But it does n’t matter. Bring a few CDs that know the placement of musical instruments in advance, such as the Yin Chengzong Piano Concerto "Yellow River" performed by the Czech Radio Symphony Orchestra and conducted by Adrian Lipper: live recording from the stage: piano It is placed in the center of the front row to the left, the right side is the cello, the right back is the double bass, the middle back is the wind music, the left is the violin group, and so on. If you sit in front of the speaker and replay the recording, you should also feel the sound field positioning effect very close to the scene. That is, the piano sound is definitely on the left side in the middle. A good speaker should be able to hear the treble part of the piano sound when the piano is solo and the bass part is centered. At the same time, you will feel that Yin Chengzong's hands are jumping back and forth in the left and right positions of the piano, resulting in extremely beautiful sound image movement. Poor speakers may hear a piano on both sides of the speaker at the same time, or the bass that was supposed to belong to the right speaker becomes the middle or left sound, causing a chaotic sound field. This kind of speaker professional saying is called poor phase characteristics or phase disorder, which is definitely not desirable.
Another example is when listening to a CD vocal disc, the vocals are emitted from the left and right speakers, but the actual feeling is that the singer is standing in the middle of the speaker in a position where there is no speaker at all. This phenomenon is called spatial sound source imaging. Good speakers, such a sound source like almost everyone can feel. The best speaker can make you feel that this person is singing right in front of you when you close your eyes. You can even make you feel the height of the character and the size of the singing. This is also called "localization". It sounds a bit "mysterious". In fact, the speakers that can hear the sound source correctly "located" are highly fidelity speakers, of course, they are good speakers.
7. The Hi-Fi sound bar does not conflict with the AV speakers
As the home theater continues to heat up, many friends often call the author to consult the author when buying speakers, saying that there are many speakers specially designed and produced for the configuration of "home theater" on the market today, and some even world-renowned manufacturers specialize in China's "home theater" is tailor-made. So what new technologies and new processes are adopted for these specially designed AV speakers? Are they different from the traditional Hi-Fi music box? How big is the difference between the two? Many friends have indicated that the speakers they choose should be able to enjoy music, watch large movies, and occasionally play karaoke and eat one fish for three! So I am not sure whether to choose a dedicated AV speaker or Hi-Fi speaker. Except for a very few personalities that are too prominent, most of them have very good acoustic reduction capabilities, and they can definitely be competent for "home theater" Various sound effects. Even a small bookshelf box such as the Meng brand 700 is not enough due to the low frequency limit of the unit, but with an active subwoofer, it can still be extremely powerful! The only difference is that the so-called home theater dedicated box is just a bit of magnetic shielding on the speaker to prevent it from being too close to the TV (generally within 35 cm) and magnetizing the screen. Then there is the intention to exaggerate the low frequency end of the crossover to enhance the bass effect. The loudspeaker cone also uses light, thin and rigid materials as much as possible for faster speed and higher sensitivity. The quality of most AV speakers is not high, and the distortion is often relatively large. But when used to watch European and American action movies, the volume is often turned up, and there are many wonderful and intense lenses that attract your attention and have no time to distract from the performance of the sound. This subtly conceals many birth defects and distortions, and does not meet the requirements of real home theater speakers. Real home theater boxes require higher resolution and good sound field reproduction, and at the same time they must not be noisy. These requirements are exactly the same as Hi-Fi speakers. Really good speakers can't keep home theaters thousands of miles away. But the so-called dedicated AV box that can only be used for home theater is definitely not a good box. Generally speaking, in the international audio exhibition held in Las Vegas every year, many five-star speakers on the list have never been in the "home theater" dedicated box. In fact, the home theater dedicated box for the Chinese market is a popular and cheap product derived from the demand of VCD, which is widely popular in China. The reason why I dare to talk to Hi-Fi speakers today is mostly because of the hype and advertising misleading of manufacturers and merchants. Therefore, when you pair a home theater, the author reminds you that you should give priority to learning a pair of Hi-Fi speakers with excellent performance as the main box. The rest of the center and surround should also be strictly audited according to the above requirements. It is best to buy brand-name products from regular Hi-Fi manufacturers. By the way: For friends who want to enjoy big movies and prefer to play karaoke, choosing a pair of three-way floor boxes can save you the trouble of subwoofers and the fear of burning tweeters. You May wish to pay more attention.
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