Tag Archives: super tweeter

1, THX certification

    Before the understanding of a variety of equipment to purchase, as the entry-level users need to know what is the THX certification, which will have you purchase the equipment played a significant role. THX certification is to provide a complete quality specifications for the home audio-visual equipment specification. In 1982, the producer of the movie Star Wars film series, George Lucas set up THX studio, in 1990, THX certification services, covering home theater equipment, video and recording studio. THX standards with international standards, has a tolerance range of most of the standard, but THX is no tolerance, only a minimum requirement, must be more than can be qualified to eliminate human transmission of the disease. It aims to play standards in order to improve the sound of the cinema film, the audience can feel the director\\ s attempt to express fully. A comprehensive set of AV system by THX specifications of equipment should be able to achieve the following effects: the treble and bass of the whole band; sound more smooth and natural; bass distortion within the audible range; clearer sound positioning.

    THX-certified equipment are designed for home theater features, of course, is to give full consideration to the function of the home theater for speaker, power amplifier should be power full audio and video source is its image quality to achieve a certain level for a balanced The device is the same, but there are many different levels of differences in decoding pre-and host. The contribution of the THX home theater is real, if the financial conditions, as far as possible use the THX models, because these features so worth it to spend more money to have a.

2, speakers

    Ideal home theater speakers, in addition to the subwoofer, the sound channel and strive to the best consistent, though not to force the main channel in the surround speakers are exactly the same in appearance and size, but at least to ensure that unit, features consistent tone . If the formation of the speakers do not come from the same brand, have a lot of difference between them in terms of appearance or sound of. Because most of the strong dynamic and attractive large are recorded in surround sound of the dynamic. Dynamic sound both contain the sound moves, but also contains the dramatic changes in the size of the sound. Mobile sound effects in order to fully demonstrate the entire audio-visual space, consistency of the speakers can.

    At least 4-channel home theater sound system, both the left front, right front, left rear, right rear channels. Better to 5-channel, five-speaker surround speakers, it can express a lot of information outside of the screen, such as an F15 fighter to fly from the screen behind the audience, this time if no surround speakers you hear the sound only concentrated in the front, so to be true, or the screen in a jungle, but you only hear a variety of animal sounds in front of and behind the silence, so can not make people feel that the body of its clinical environment. The consistency of the five speakers for unity, such as the front flying the Boeing 747, but flew behind you sounds became small aircraft, so bad. If the selected speaker inconsistency likely to cause the above-mentioned phenomenon. Should be noted that for entry-level, there is no one speaker is the speaker taking into account the dynamic and detailed sound quality that is suitable for the speaker to enjoy music, the lack of explosive power, but for watching movies in the delicate aspects of the performance sound quality lacking . As for the coordination between the speaker, in the purchase process may be more practical listen, a lot of comparison.

    What we usually 5.1,7.1 channel means a 0.1-channel, that is the bass, also known as a subwoofer, the subwoofer. The main purpose is the low frequency of the speaker system to be added if your main speakers (5 or 7), the bass is very strong, without can also, at this time must switch off the decoder bass, so this part of the The signal assigned to the main speaker. For small main speakers plus a subwoofer can be a good rendering the screen on fire. True only when the Big Bang happening around the mountains shake the feeling will be real, U571 in exciting deep-water explosions. Theater with a few bookshelf box instead of the subwoofer is clearly not good.

    Typically, in a movie soundtrack, subwoofer energy mainly at 60Hz or so, a lot of film containing as low as 20Hz, the highest sound pressure level of the site can reach 105dB, I can say that the point of deafening. It can be hard to say that the lack of subwoofer theater is complete. As for how to pick a pretty subwoofer, woofer caliber simply the bigger the better, size is best not less than 30cm, see the technical specifications, of course, to listen to the effect.

3, the AV amplifier

    AV amplifier port card currently on the market numerous high-end brand to Japan, Europe and the United States and other places, although the domestic high-end amplifier, but not much. In general, European and American brand-name models grade higher power are relatively abundant, the price is more expensive. Only a few very high-end Japanese products in the price of the more popular, recently introduced a lot of cheap models. Domestic products while the parity-based, the quality is better in general it was in about 2000. Able to cope with the emergence of the Blu-ray and HD DVD player, the amplifier of the Blu-ray and HD DVD audio formats have emerged, and production support next-generation audio format of the new amplifier manufacturers Onkyo, Denon and Pioneer three brand. Added many new elements to the new amplifier to support the next generation audio formats, the better, but the prices are high, do not recommend the entry-level theater purchase.

    For entry-level users, in general, you can choose to merge AV amplifier built-in decoder.

    First, however, is to determine the type built-in decoder, AC-3 as the world\\ s film industry recognized widely used, its software DVD disc has matured and become the market mainstream. DTS in a way than the AC-3 advantage of surround sound system, software, an increasing number, therefore, optional built-in AC-3 and DTS double decoder AV amplifier is a better choice .

    Second, select the appropriate output power, it is very important and should be according to the speakers actual use, the need of promoting the power to determine the AV amplifier\\ s rated output power, usually the AV amplifier\\ s output power should be is the system by the use speakers rated power of 1.5 ~ 2.0 times. The powerful AV amplifier is often a multi-amplifier tube and the large-capacity power transformer, low-power AV amplifier may use lower-cost power IC to do after the class. The method of determining the power output to AV amplifier is: If the use of the power amplifier\\ s volume control knob is simply rotated to a maximum volume of 1/3 position, the speaker playback volume can meet the needs of the actual listening, it shows its The output power can meet the requirements, the election was more appropriate.

    Finally, if there is sufficient budget, why not choose a THX-certified AV amplifier. Determine the tone and sound quality is good or bad, it needs to experience. Recommends that the best time to buy the speakers connected to the amplifier for the actual audition, so it is best to buy speakers and amplifiers, the same company can be repeated exchange of the different combinations of relatively audition to choose their own favorite sound.

4, the player

    Blu-ray and HD DVD aside, the DVD is the best audio and video news source equipment, because it is a good interpretation of the Dolby Digital or dts sound. Many users are listening to music or CD Best In actual fact, the new listing of SACD and DVD-Audio sound quality specifications beyond the CDs, but also support multi-channel, while the CD can only provide two-channel stereo program source, the effect can not be in the same category. However, this is almost personal favorite. The formation of the theater, it is recommended to buy the DVD. The entry-level users in the choice of DVD step, the selected DVD compatible with all formats. DVD can read MPEG1, MPEG2, MPEG4-specific EVD format, HDV format and FLASH these audio and video formats and MP3, WMA, CD audio tracks, MIDI, HDCD and other audio formats. But there is no function of a DVD has to read all formats. A variety of formats that not every are common, and advance the read format is not for everyone significance. So when purchasing a DVD best according to their own needs to choose, otherwise, it is a waste.

    For the first home theater, buy the DVD disc will do the homework. The discs can be borrowed to friends to see, feel, after reading worth preserving, and then decided to buy the original. Note, however, the pirated discs often have a variety of defects, may be far less than the original product of its audio and video, casual look can also be the collection still recommend the original, save time because usually the case of pirated CDs shorter than the original.

5, the display device

    Types of display devices including a CRT TV, LCD TV, plasma TV, rear projection TV and projector. Limited by the size and resolution, if you want to set up a home theater, and CRT TVs difficult to bear responsibility.

    LCD TV is the most popular display device, the main advantage is that the image is sharp, long life, high brightness, high resolution, the drawback is that the reaction is slow likely to cause a rapid screen tailing and low contrast. Now have up to 108-inch LCD TV for sale, but the price is astronomical.

    Plasma TV LCD appears early and is very popular in foreign markets, the advantage is the high number of colors, screen size, high contrast, LCD smearing. But the brightness is low, life expectancy is less than the long LCD TV, the largest size of 103 inch. Large-size plasma has an advantage in price than the large-size LCD TV.

    LCD, plasma and other days have not come out flat-panel TV, rear projection TV can be said to dominate a large screen color TV market. However, the strong impact of the flat-panel TVs, rear projection television has gradually being squeezed out of the circle of high-end, more affordable price. CRT rear projection, LCD LCD rear projection, DLP light rear projection, etc. are several currently on the market, which is the most common CRT rear projection. Choose a cheap large-screen projection TV as a display device can be very practical.

    Common projector has two kinds of LCD projectors and DLP projectors. The color reproduction of LCD projectors, high resolution, is currently million yuan or even lower than prices in small commercial spaces on the application, and are into the home. DLP projectors have higher brightness, the screen switches more fluid, but the price of a few million too expensive for the average family. More recommended for entry-level home theater 720P LCD projector that can create realistic movie effects, and color performance DLP projector natural point, the most important point is that the price is not high, more known for the Panasonic AE900 and Sony the PLV-EX4 has fallen below a million.

    What kind of equipment most suitable for home theater and not a conclusion, this is entirely a matter of personal likes. However, there is need to remember is this: try to choose a 16:9 resolution of 1366 × 720 or more, large-screen high-contrast display devices, viewing distance is about three times the screen height.

6 equalizer

    Many audio and video magazines, websites, forums, you\\ ll see the \"equalizer\" in the name. What is the equalizer? Equalizer by definition the entire sound is balanced, low balance. Its main function is used to compensate for the defects of the acoustic characteristics of the interior space. A high-quality home theater sound system, at least the front three channels and the subwoofer is not the lack of audio and video equalizer. Study the equalizer, we start from the four technical specifications of the signal to noise ratio, dynamic range, frequency adjustment points and the adjustment range. However, the equalizer is generally used for professional use, amateur players is difficult to get him, they might be self-defeating, so not recommended to use entry level Shaoyou use.

7, video and audio switcher

    To use this equipment to the audio and video switch, it means that your A / V news source has a lot or a lot of rooms to be assigned. Of the devices tend to have high-end models to choose from, and generally shared and decoding before the class. PROCEED\\ s level, the inherent decoding functions, another news source A / V sync switch function. Such equipment often with the AV amplifier to replace the initial video selector.

    Summary: that so many equipment options as entry-level theater in the end need to spend much money to configure a home theater system? I think it is necessary, depending on the circumstances of each person\\ s actual financial capacity and living environment and to make different choices, combined with the different circumstances of their own to work out a different mix of programs to purchase their own home theater system. At present, many of the dealers advertising invariably unanimously advocate as long as 998, home theater and moved back home \", these combinations can be said was shoddy inferior quality, is not recommended as consider the object. A real home theater system, but also the cheapest type of start with, all the equipment has a certain quality, product performance and quality can be guaranteed, the whole set with the price of about 3000 yuan or so, I believe the general revenue families and young singles can afford. But the price of the real entry-level home theater system with about 9000 to 12,000 yuan. The entry-level luxury suite home theater system, cost about 17,000 yuan.

    Need to pay attention to the theater of the entry-level equipment to match as much as possible with the same manufacturers. Is uniform, and secondly, looks the perception of Ye Hao. Furthermore, the products of the same manufacturer, the color coordination between the various pieces of equipment, and sound mix, a perfect consideration by the manufacturers in advance, so must be beautiful in the visual and the use of a lot easier. Select a brand like East West, pick a model, and with them it is neither beautiful, the sound not too coordinated.