【 Weak current College 】 car audio also fever? talk about China's car audio Hi-Fi---Power By 【 China power house network 】

We are all familiar with home theater industry enthusiasts, although in recent years the home theater market are not very boom, but also shot out a lot of so-called audio junkie, I also worked on a! some time ago in the auto accessories Salon Magazine to see a few articles about domestic car audio market and related brands articles, generally speaking, the development prospects of good, space is also very large, many household electrical appliance enterprises have invested to build out their flagship product, some "sabre-rattling to market". Whatever the outcome, we start with car audio market these products! enthusiasts as the sound of the sound of things always were particularly sensitive, some time ago also booked several "peer" to some car audio shop to "play". However, today, or to share with you some of the more basic professional knowledge ...

You experience a genuine high-fidelity (Hi-Fi) car audio conversion effect?

To find out the the nouns

Hi-Fi "high fidelity", the English original Word High-Fidelity. Audio device can accurately reflect the true nature of the sound signal, called high definition. In this connection, high-fidelity audio equipment should not be on the original signal further modification, processing, and certainly not distorted. Hi-Fi concept and picture photography concept is basically consistent, photo photography photos can truthfully hope (high definition) to reflect the photography of objects, and the focal length, exposure is not allowed, and will make the image distortion (art photography). In fact, some in the specification very high audio amplifier (for example: some IC amplifier, transistor amplifier) practical sense is not good to hear.

Hi-end in many concepts is Hi-Fi to and from, the basic no difference to fidelity. In fact Hi-end and Hi-Fi are two definitions of the concepts, Hi-Fi on electro-acoustic performance compared to focus on, the index of physical aspects of the definition is from a technical point of view fever products. It is fastidious specification, stress reduction; and the more is Hi-end from an artistic perspective, fever, high fidelity in meet the basic requirements, it is more about culture, feel, features, personality, it will be based on the human physiological auditory characteristics and auditory characteristics on the sound according to their own understanding of the voice, through the amplifier, speakers, CD machine equipment for materials, components, circuit of choice for some of the sound with a purpose "processing" (distortion), thus forming a sound unique style, for example, "United Kingdom", "Germany". Therefore, the specification for it have no substantive meaning, it has reached a sort of "SOTA (stateoftheart-art realm). Therefore, there is a bass (a "nice" distortion), a personality, index is not very good, and so on are Hi-end can allow. This painting is basically the same, it has style, genre, presentation, and so on, it does not pay attention to painting on the painted objects "fidelity", but pay attention to the objects of artistic expression.

At present, in many places, we confuse the Hi-Fi and, worse still put Hi-end a product to Hi-Fi or Hi-end, Hi-Fi or Hi-end reduced advertising vocabulary, this time on Hi-Fi or Hi-end understanding is a different meaning. To do this, we should learn to distinguish.

A simple understanding of Hi-Fi is suitable for the Internet age and digital sound sources of high-quality audio products. It has like Hi-Fi products as on technical requirements, but more so with Hi-end products of cultural tradition. The car is the product of the new form, car audio is changed under the new form of automotive entertainment systems, due to the development of historical reasons and the actual point of departure, car AV in car tuning status are becoming increasingly important. But we should know how Hi-Fi and AV stereo differential nature of some differences.

Hi-Fi and AV audio difference

When it comes to car audio fever seems to be some excursions, but you read the following text, you'll understand (because I think the fever is not that of "casual" and "simple"), the image or take home theater for contrast. However, when you look to the near-talk-articles please don't tease, in the audio piece enthusiasts look elegant and sacred art Palace because the author to straight into the subject, the issue had to be drawn from the "money". From the market of Hi-Fi class equipment and AV equipment price comparison in the class, it is not difficult to find such a hard fact that AV Home Theater class equipment usually priced than Hi-Fi class equipment, in particular domestic equipment of this gap is very obvious, high-end product comparison is also imported. Station in audio consumers or enthusiasts, a high-priced Hi-Fi amplifier or a high priced Hi-Fi speakers, even if it is developed by grade level or likely to be accepted or market recognition, generally because of their praise, sells is also good, especially the number of imported equipment, found million of Hi-Fi equipment there in the market, the owner must have been around you ...

Perhaps because of this, domestic and foreign manufacturers rarely launches luxury-class AV class equipment, so does that mean Hi-Fi class equipment class than the AV technology costs are high or very difficult to do, does that mean Hi-Fi amplifier than AV amplifier sound excellent, this article is intended to be on this issue on some views may not be mature for audio enthusiasts and industry manufacturers.

First of all to the sound system of the Centre part power amplifier for example, if from the markets take a few sets of Hi-Fi amplifier, AV amplifier, just open the cover we will know, AV amplifier indeed than Hi-Fi amplifier is much more complicated, at least from the inside of the number of electronic components, features, such as plate number AV amplifier than Hi-Fi amplifier absolute number, of course, is much more complex. Therefore IWere of the view that, from the manufacturing process and manufacturing costs, AV amplifier should be better than Hi-Fi amplifier is much more complicated, difficult manufacturing and commissioning, drop it largely adopted General electronic components can be offset by some direct material costs, from the total on the AV amplifier of direct material costs should be greater than Hi-Fi amplifier; from a purely technical perspective, home theater playback features on the requirements of the AV amplifier is also very high, the full/mould circuit mixed conditions to consider how to ensure a high signal to noise ratio, multiple-channel high power output under the conditions to obtain low-distortion, excellent dynamic response speed and output characteristics and meet the standards of the frequency response and channel separation etc; from the States of the relevant standards in AV amplifier internal/circuit plate promiscuous, SCM and display and transformers, etc. There are a great deal of interference, meet the national standard of requirements for electromagnetic compatibility of indicators is AV amplifier must pay attention to specifications, and Hi-Fi amplifier while the index is also based on the same requirements, but allows anything to compromise, enthusiasts more major attention is subjective listening to interested to meet people listen, enjoy the music of the psychological needs, high-fidelity even around beautiful music is very excellent tuning skills; from circuit design, AV amplifier usually consists of audio and video feeds to receive select unit, surround system decoding that Dolby analogue or digital Dolby and dts AC-3 digital cinema system simulation of decoding and DSP digital sound field processing unit, multichannel amplifier unit, power supply units and control display unit, remote control, and many other modules, some AV amplifier even includes AM/FM Digital radio tuner, karaoke reverb processing, TV screen menu OSD and so strengthen functional unit circuit, and Hi-Fi amplifier selection only by the sound source to receive, once amplification, and power amplification, modules, and even some Hi-Fi amplifier with front-level voltage amplifier, something to say, Oh, simplicity is supreme, concise and become a Hi-Fi sound system design, development of magic, and AV amplifier, the designer is to simple and also must ensure that the AV amplifier's basic functionality is practically impossible. Overall, the level of Hi-Fi amplifier is mainly reflected in the level of sound quality adjustment of manufacturers, and AV amplifier is on manufacturers and development capabilities, manufacturing technology and management, and comprehensive level test.

As for the current market flood of low-cost car audio equipment, you should belong to another matter, AV amplifier at an early stage of development of technology standards and performance without the high to pop, survival is understandable, also need a progress and development of process, people have a process of awareness, enhancing, we recall that when the 1980s home Hi-Fi amplifier has just come out when you will understand that it is all about, with the home theater system equipment penetration increase and their appreciation of the progress and the level of the manufacturers to develop manufacturing process technology accumulation, believe more and more domestic excellent AV amplifier, and price levels are not necessarily increase. Therefore, some people think that AV amplifier than Hi-Fi amplifier of low end, the sound quality is poor, so the price is one-sided, although there are objectively current AV equipment unsatisfactory, AV amplifier can also implement Hi-Fi audio indicators and results. So Hi-Fi amplifier developed by rational explanation exists should be: one is the brand's role, in particular imports Hi-Fi amplifier such factors much more; the second is Hi-Fi amplifier in general more or less using audio dedicated components, so-called sound than regular dedicated components because the electronic components sales less but the price is relatively high, the other is in the tone adjustments, spent a lot of effort and artificial, AV amplifier usually does not appear to have this statement requires that the design is finalized then only have to follow this way is using assembly line production.

Go back and turn to the sound system is the most ancient part of speakers, one on the second only the rich will sound characteristics particularly musical expression and impactful, subjective listening to excellent sense and was well received and favorite speaker, to become the so-called Hi-Fi speakers, like a fashion brand value is extremely high in General, and AV speaker is different, not only by five to six speakers (much more than Hi-Fi speakers), but also have a certain power, frequency response, distortion requirements indicators, especially large dynamic performances of outstanding sound quality and low distortion sound field indicator, or the accuracy, consistency, from digital Dolby and dts AC-3 digital cinema system for audio restoration technology requirements, not only in addition to the woofer speaker than the other five speaker specifications should be completely inconsistent, and AV speakers of technical requirements more stringent than Hi-Fi speakers. Thus, if the rules of design and manufacture of speaker, AV speaker system should have the same level of the same grade than the Hi-Fi speaker system cost is even higher, with power amplifier, based on the current market and consumers generally AV systems lack proper understanding and other reasons, the current market the vast majority of AV speakers not should reach specifications and other requirements for the development and manufacturing of, performance of course cannot and Hi-Fi sound system's performance in the same breath.

Fever a family: a roll of gold for Hi-Fi?

Over the years, as the number of car audio, car audio multiplied with profound culture had many, many home theater enthusiasts are also brought into this piece of fresh and fertile land. $ Equipment on began to show to the market. But pure Hi-Fi car audio author but not in person. May be a personal view: Auto narrow space, there is no way to enough fever, and a high fever equipment "footprint" because it is very large, so I think that the market of car audio and more can work on an AV, can achieve the effect of a home theater that also have to wait some time. Here I have no intention to belittle car audio, in this limited space inside the environment and can do so very reactive power road is good. But now the market has unearthed a number of famous acoustics, the feeling is very good.

Car audio equipment for passenger cars, is a kind of auxiliary equipment for automobile driving performance is not affected. However, as theThe development of science and technology, audio and Visual level requirements are higher and higher, auto manufacturers are also increasing emphasis on car audio equipment, but in order to reduce costs, the car manufacturer is configured with a common audio equipment, CD, VCD-luxury car, and also the comparison of primary, and there is no way to achieve the perfect audio and video effects. So many people buy a car, all cars for decoration, among them, install sound takes up a large percentage, in Beijing Chinaipu automobile technology development co., Ltd. of direct store, almost daily to require the installation of car audio equipment, listening to the melodious music of comfortable, so that the drive has a flavor.

To get better sound effects, it is necessary to compare the professional automotive beauty conservation decoration shops on the original sound system be modified or replaced.

Car audio shows the major components of the host, amplifier and speakers.

Car audio host is the most direct is to see its specifications, mainly has following several aspects:

1, output power, now hosts the majority of the calibration of power, for music power, the power between the 40W-60W bigger and better.

2, frequency response: the human ear can hear the frequency range in between, so the 20HZ-20KHZ indicators at least to achieve this value, and the wider the better.

3, signal to noise ratio: means the music signal and noise ratio generally high-end car audio is more than the numerical 90DB bigger and better.

4, total harmonic distortion (THD): this index reflects the sound reproduction of restore, restore the smaller number of higher, the better.

Just have said that, in the same brand-level perspective, the price is the main factor, or even someone to throw huge amounts of money to go to car audio above, nor to blame, but the huge compared to home theater, not comparable, some time ago to participate in audiovisual products fair, Grand Hyatt stereo launched 108 million of its flagship product, how, and who can vote in car audio so much of the above, the key is not necessary, it can be said that this kind of luxury products on the market yet, here I would like to say is that we choose, be sure to design according to your own body and space, and other aspects to consider, to enjoy the most pure music is our eternal pursuit, currently the world's a lot of equipment or is worth listening to, here is a detailed explanation, also in choice of audio, please note the following basic parameters and standards.

Buy audio, first eyes

In this respect personal point of view and in the car audio selection on some "fallacy".

Along with the social economy development, car audio and more popular. The sound equipment on the market, the cohabitation of various brands and styles, give consumers a certain degree of difficulty of the choice.

Car audio including hosts, amplifier, speakers, three parts. Currently, most hosts include built-in amplifier. Host of the brand are now mainly with Sony, Kenwood, pioneer, Alpine, songs and music, jieweishi, Panasonic, etc. PA and sound kinds of field currently on the market there are many, spotty, prices are confusing. Buy car audio front, first you must consider is installed, car audio due to car-specific installation location, the technical requirements for the installation, improper installation not only affect the audio quality, and potential damage to the car. So you should choose the larger shops, equipment complete, particularly insurance, wire rod and other auxiliary materials complete shop. Buy car audio first step is to listen, first find a audition easy audio shop, using familiar songs and compare different speakers, currently on the market there are many unknown brand, shoddy, if you understand the speaker's sound quality is not very clear, you can purchase brand name car speakers, and quality and after-sales service are relatively good.

Car speakers mainly double cone-shaped, two-, three-way type, independent component, subwoofer unit, etc. Independent component includes separate treble unit and independent audio unit and sub-topic network. The General Assembly in the automotive door such as Santana, Jetta waiting for a bus, its look and sound better, but the technical requirements for the installation is relatively high, the best in professional shop installation. In General, the larger the diameter of the speakers, low frequency, the better, so I like to hear the bass, the best equipped with larger-caliber speakers. Choose good speakers, according to speaker power and complete sound budget, to decide whether to install a power amplifier. In General, select 8-inch and 8 inch above the speakers must be equipped with a power amplifier. Power amplifier on the sound effects are large, with the brand of power amplifier and speakers generally match the better, you should first taken into account. If you select brand car speakers and amplifier, generally according to its technical parameters to match. On an unknown brand best real match audition. Amplifier power is generally larger. Be sure to test the installation restaurant with wire rod and insurance, are not qualified wire and insurance not only loss of power, but also easy to cause a fire. In particular, install multiple amplifier of large-scale systems, on the original car's power and electricity to be fully taken into account.

After choosing a power amplifier, according to the power amplifier and speakers to determine the host, different power amplifier on the host requirements. If you choose a power amplifier, it is best to choose a higher front output level, and currently hosts to four Volt output. From the actual installation, Alpine hosts generally suitable installation amplifier, if you install the subwoofer unit, it is best to choose and order the output of the host. If you do not select a power amplifier, various brands host may elect, mainly based on appearance and audition results, the brand machines are some distinctive features, according to their own preferences to choose. Everyone enjoy the habits and preferences are different, the feeling and understanding of music. How to make customers can purchase on their own sound system, this requires the installation of engineering and technical personnel for the entire sound system design and calibration. So choosing the right installation shop is to buy a good sound.

Select installation shop from hardware, software, two aspects examined, first of all, from hardwareProfessional audio shop should have a special audition and installation site, audition equipment design and audition equipment is measured a key installation shop. Followed by the installation of auxiliary materials. Including the use of tools, tape and wiring, and in particular the antenna, signal line transfer is particularly important, in General, the manual connection have a greater impact on sound quality, immunity is low. For installation of large systems, such as amplifier, speaker, speakers with density Board, insurance, automotive waterproof. These materials quality directly affects the sound effects and car security. The software is based on the installation of engineering and technical personnel's quality, certified installation technicians must first be familiar with all brands of car audio products operating characteristics and quality characteristics. Secondly you need to become familiar with each type of audio track and speaker installation location and size. Car audio and home audio, you need to consider the vibration, dust, heat, and many other factors. Car space is small, the speaker of the installation location on the interstitial impact is large, qualified installation technicians can customers appreciate the habits and preferences to determine speaker installation location, and you can adjust the speaker's direction and phase to determine the best listening position inside the vehicle. The last inspection is the level of technology of Setup shops, in-car audio, more or less to be converted to the original vehicle to do some changes to how the alignment, how to deal with the appearance is critical.