College】 【weak home theater equipment selection take the knowledge of the.

<br> <BR> many users are asking knowledge of home theater, especially those based theater equipment purchase and with the most problems. .To facilitate the query, where the specially compiled some home theater equipment purchase and with the knowledge and skills, want to build entry-level home theater who help. .<BR> <BR> 1, THX certification <BR> <BR> to understand before purchasing a variety of equipment, as entry-level users need to know what is THX certified, as this will play a great equipment you buy .role. .THX certified audio-visual equipment primarily for the home to provide a complete quality standard specifications. .In 1982, the movie Star Wars producer George Lucas film THX studio was established in 1990 proposed THX certification services, covering home theater equipment, video and recording studio. .THX standards with international standards is different from most of the standard has a tolerance range, but THX is no tolerance, and only a minimum requirement, must pass over in order to eliminate human transmission of the disease. .It aims to improve the sound playback quality movie theater, the audience can fully feel the director wants to express herself. .THX specifications of equipment for a fully formed by the AV system should be able to achieve the following results: full band treble and bass; sound more smooth and natural; at least in hearing range of the bass distortion; more clear vocal orientation. .<BR> <BR> THX certification for home theater equipment functions are designed for speakers of course take full account of the functions of home theaters, for the power amplifier should be full, for the video source is its image quality up to a certain .level above the same is true for the equalizer, but for the decoder and host pre-class differences, a lot of different levels. .THX home theater's contribution to the real, and if the funds condition, as selected THX models, because these characteristics are too worthy to spend more money to have. .<BR> <BR> 2, speaker <BR> <BR> the ideal home theater speakers, in addition to the subwoofer, all seek to channel the best line, though not force the main channel, the surround speakers on the appearance and size .exactly, but at least to ensure that unit, character, consistent tone. .If the speaker is not formed from the same brand, shape or between them in terms of both sound very different view. .Because most of the large dynamic strong and attractive are recorded dynamic surround sound. .Contains both dynamic sound moves the sound, but also includes dramatic changes in the size of the sound. .In order to fully demonstrate the audio-visual space, mobile audio, speakers can achieve high consistency. .<BR> <BR> Home theater sound system, as at least 4 channels, only left, right front, left rear, right rear channel. .5-channel is naturally better, and five speaker surround speakers form, it can express a lot of off-screen information, such as an F15 fighter jet to fly from the screen behind the audience, this time without the surround speakers if you hear .the sound will only focus on the front, so to be true, or the screen is in a jungle, but you only hear the sounds of various animals in front, but behind the quiet, so the body can not make people feel .Pro its territory. .Consistency of 5 speakers for unity, such as flying in front of a Boeing 747, but the sounds behind you flew into the small plane, so to bad. .If the selected speaker easily lead to inconsistencies in the phenomena mentioned above. .Note that, for the entry-level, the current does not have a speaker is taking into account the dynamic and detailed sound quality that is suitable for the music, speakers will be the lack of explosive power, and the speakers for watching movies in the performance of delicate aspect has been the lack of quality .. .As for the speaker coordination, in the purchase process may wish toactually listen to, a lot of comparison. .<BR> <BR> We usually say, 5.1,7.1 channel refers to more than a 0.1-channel, that is the bass, also known as the subwoofer, subwoofer. .The main purpose is the low frequency of the entire speaker system to be added, if your main speakers (5 or 7) very strong bass, without also, at this time to the bass off the decoder, so this section .signal assigned to the main speakers. .But for the small main speakers, plus a subwoofer can be a good picture of the popular rendering. .When the explosion occurred around the time the earth was moving in the true sense of will, U571 explosions in deep water until the exciting true. .If the theater with a few shelves to replace the subwoofer box is clearly not very good. .<BR> <BR> In general, movie soundtracks, the ultra-low sound energy is concentrated in the 60Hz or so, many films and even as low as 20Hz with information can reach the scene of the maximum sound pressure level 105dB, I can say that the deafening .level. .Can be said that the lack of a subwoofer theater is hardly complete. .As for how to pick a pretty subwoofer, woofer diameter simply the bigger the better, size is best not less than 30cm, see technical specifications, of course, to hear results. .<BR> 3, AV amplifier <BR> <BR> currently on the market port license number AV amplifier, high-end brand to Japan, Europe and America, mainly domestic, although a high-end amplifier, but not much. .In general, European and American high-grade brand-name models, power are relatively abundant, prices are more expensive. .The very high-end Japanese products only a few, the price of the more popular, recently also launched a lot of cheap models. .National Product Zeyi parity-based, it was in good general quality of about 2000. .Blu-ray and HDDVD players because of the emergence of Blu-ray and HDDVD therefore able to cope with the amplifier audio formats have emerged, currently producing next-generation audio format support for new power amplifier manufacturers are Onkyo, Denon and Pioneer three brands. .New next-generation audio format support added many new elements of power amplifier, the effect is better, but the prices are high, not recommended for entry-level theater purchase. .<BR> <BR> For entry-level users in general, the decoder can choose to merge the built AV amp. .<BR> <BR> First, however, is to determine the type of built-in decoder, AC-3 as the world film industry has begun to widely recognized, the software has matured and DVD disc into the mainstream. .But the DTS in a way more advantages than the AC-3 surround sound system, an increasing number of software, therefore, choose Built-in AC-3 decoder and DTS dual AV amplifier is a more ideal .. .<BR> <BR> Next, select the appropriate output power, it is very important and should be based on actual use of speaker-needed boost when the power to determine the AV amplifier rated output power, usually AV amplifier output power should be used in speaker system .rated power of 1.5 to 2.0 times. .High-power amplifier is often a multi-AV amplifier tube and the large capacity of power transformers, while the low-power AV amplifier may be used to do low-cost power after the IC level. .Determine the AV of the output power amplifier is: If you use only the power amplifier volume control knob rotated to the maximum volume of 1 / 3 position, the speaker volume can replay it to meet the actual needs of listening to on its .output power to meet the requirements, the election was more appropriate. .<BR> <BR> Finally, if there is adequate budget, why not choose a THX-certified AV amplifier. .The decision to tone and sound quality, it requires experience. .Proposal to buy the speakers connected to the amplifier when the best the actual lyrics, so it is best to buy a company in the same speakers and amplifiers, can be repeated to compare different combinations of exchange of Love, until like the sound of their own choice. .<BR> <BR> 4, Blu-ray player, and HDDVD <BR> <BR> not say apart, DVD video and audio information is the best source of equipment, because it is a good interpretation of the DolbyDigital or dts sound. .Many users believe that the best music or CD, is not the case, the new listing of the current DVD-Audio and SACD sound quality specifications beyond the CD, and supports multi-channel, while the CD can only provide two-channel stereo program sources, the effect is not .in the same category. .However, this is almost personal favorite. .Formation of cinema, or the proposed purchase of DVD. .Some entry-level users want to step in the choice of DVD, a format compatible with all the selected DVD. .Current DVD can read MPEG1, MPEG2, MPEG4, EVD proprietary format, HDV-specific format and the audio and video formats and FLASH MP3, WMA, CD tracks, MIDI, HDCD and other audio formats. .However, a DVD has not yet read all formats. .And each of a variety of formats is not common, but not ahead of the reading format meaning for everyone. .So the best time to buy DVD's to choose according to their needs, or else is a waste. .<BR> <BR> Early for home theater beginners, buying DVD disc is a must do homework. .Discs can lend a friend a look again after reading the decision that is worth saving to buy the original. .Note, however, the pirated discs tend to have a variety of defects, their effect may be far less than the original audio and video products, you can easily see, then it is recommended to the original collection, because usually the retention time of pirated CDs .shorter than the original. .<BR> 5, display device <BR> <BR> types of display devices including CRT TV, LCD TV, plasma TV, projection TV and projector. .The limited by the size and resolution, if you want to set up home theater, CRT TV is difficult to bear the responsibility. .<BR> <BR> LCD TV is the most popular display device, the main advantage is the image sharp, long life, high brightness, high resolution, slow response disadvantage is likely to cause rapid screen smearing, contrast is low. .Now have up to 108-inch LCD TV for sale, but the price is astronomical. .<BR> <BR> LCD Plasma TV appeared there much earlier than that, is very popular in foreign markets, the advantage is the high number of colors, screen size large, high contrast, without smearing the liquid crystal. .However, low brightness, long life expectancy is less than LCD TVs, the largest size is 103 inches. .Large-size large-size LCD than plasma TVs have the advantage in price. .<BR> <BR> In LCD, plasma and other flat-panel television was still not come out of the day, rear projection TVs can be said to dominate the big-screen TV market. .However, the strong impact of flat-panel TVs, rear projection television has gradually been squeezed out of the circle of high-end, the price more affordable. .There are currently on the market CRT rear projection, LCD rear projection LCD, DLP rear projection and so were several light, of which the most common CRT rear projection. .Choose cheap big screen rear projection TV as a display device also can be very useful. .<BR> <BR> Present common projector LCD projector and DLP projector two. .LCD projector better color reproduction, high resolution and is currently even lower than the million to million in the prices of small commercial spaces on the application, and are into the home. .DLP projector has a higher brightness, the screen switching is also more fluid, but the price of several million families in general are too expensive. .For entry-level home theater, the more recommended 720P LCD projector, the film can create realistic effects, and color performance than the DLP projectors natural that the most important point is that the price is not high, relatively well-known Panasonic AE900 and Sony PLV-EX4 .hasfallen below million. .<BR> <BR> Which display the most appropriate home theater set up, and do not have a conclusion, it is entirely a matter of personal likes. .But one thing to remember is: try to 16:9, resolution 1366 × 720 or more, large-screen display high contrast, viewing distance about three times the screen height. .<BR> <BR> 6, equalizer <BR> <BR> video in many magazines, websites, forums, and you will see the "equalizer" in the name. .What is the equalizer in the end it? .The name suggests is a balanced whole the equalizer sound high, medium and low balance. .Its main function is to compensate for defects in the acoustic characteristics of interior space. .A quality home theater sound system, at least three front channels and subwoofer are not missing audio equalizer. .Investigation equalizer, we mainly SNR, dynamic range, frequency adjustment of four points and adjust the scope of technical specifications to start with. .However, the equalizer generally used for professional use, hard to get him a good amateur players, they might is self-defeating. So, is not recommended to use with entry-level Shaoyou. .<BR> <BR> 7, <BR> <BR> video switch to the video switcher to use this equipment, that means your A / V source has a lot of information, or a lot of rooms to be assigned. .Such devices tend to have high-end models to choose from, and generally shared with the decoder before the class. .For example, the first stage PROCEED, both the decoding itself, another information source A / V synchronization switching function. .Such equipment can often be used instead of the initial AV Amplifier AV selector. .<BR> <BR> Concluded: that the choice of so much equipment, so as the entry-level theater in the end how much money to spend configuring a home theater system? .I think this is necessary according to each person's actual financial situation and living environment different tomake a different choice, and with their own different circumstances with different formulation of plans to purchase for their home theater system. .Currently, many dealers are unanimous ads without any intent to advocacy "as long as 998, the family moved back home theater", the combination of poor quality can be said was shoddy, do not recommend you as the object of consideration. .A real home theater system is the most expensive type start with, all the equipment has a certain quality, product performance and quality can be guaranteed, the package with the price of about 3,000 yuan, that of the general revenue .families and young singles can afford. .But the real entry-level home theater system with the price of about 9,000 to 12,000 yuan. .The entry-level luxury suite-based home theater system, cost about 17,000 yuan. .<BR> <BR> Note that the entry-level theater with the same manufacturers as the equipment to match. .One thing they are uniform, and secondly, some of it looks Ye Hao visual experience. .Moreover, the same manufacturers of products, the color between the various pieces of equipment, coordination and tone of the match, made perfect by the manufacturers considered in advance, so that the visual appearance and use to be a lot easier. .If you choose a brand of the East, West, pick a model, it is neither beautiful with it, sound will not be too coordinated. .<BR>.