Audio consumption is a fashionable and personalized consumption that can bring people a higher level of spiritual enjoyment. However, it is reasonable to create a home theater that is satisfactory. For ordinary consumers, there are many misunderstandings in the purchase process, and often cost a lot of money but exchange a bunch of electronic products that they are not satisfied with. So how do you buy a home theater product? The following aspects should be noted:
1. The power of the amplifier should not be too large: some consumers often regard the crude four-channel power amplifier as an AV amplifier. In fact, this kind of power amplifier only expands the traditional two-channel stereo into four channels, and uses four speakers to play back and forth. There is no sound field positioning and space delay reverberation Dolby directional logic surround effect, internal circuit It is also a very ordinary op amp and thick film amplifier, which can't talk about the effect and quality of AV amplifier. Some consumers over-pursuit of the power of the amplifier. In fact, the listening area of ​​the family living room is generally not large, the power of the main channel is 100W, and the 30W power amplifier of the center and surround channels is sufficient. It is not necessary to have a bigger and stronger POWER. Pay special attention to the actual purchase of Dolby Promise Logic Decode (DOLBYSURROUND) and the actual channel separation of the decoder.
2. The speaker should not be too exaggerated: the speaker should be based on the sense of hearing, with economic strength. When purchasing, you should not only pay attention to whether there is a gorgeous appearance. You can't just hear the exaggerated treble or bass when you audition. If you don't have a full and transparent midrange, you can't show the perfect vocal string.
3. The microphone should not be too heavy: the general family should use a popular dynamic microphone with better quality. Others mistakenly think that the heavier the microphone, the better. It is not known that some inferior microphones are added with lead or pig iron to form a windshield to increase the weight, thus making consumers fooled. Therefore, as long as the work is fine, marked with a clear manufacturer or agent, and the "three certificates" complete products can be safely purchased.
4. The display should not be too large: many consumers mistakenly believe that the size of the monitor screen of the home theater is as large as possible, but in fact, due to the relationship between the scan lines and the TV screen, the outline of the image details is blurred. People have a rough feeling of particles, so it is generally appropriate to use a TV set with a size of about 29 inches.
5. Do not emphasize the built-in karaoke function: ordinary home theaters generally use VCD machines and DVD players as signal sources. Consumers should not buy a brand-name machine when purchasing. Single-disc machines with digital correction and digital noise reduction circuits should be purchased to reduce image distortion caused by high-speed operation of the disc and interference of chrominance signals. Consumers who like to enjoy music can also purchase a machine with a CD-specific output terminal. When purchasing VCD machines and DVD players, it is not necessary to emphasize the built-in karaoke function, because the karaoke system of the disc player is connected in series in the sound circuit, the materials are extremely simple, and a large number of components such as flat resistors and capacitors are used. The audio frequency is quite large, let alone the beautification sound. Choosing a professional karaoke machine is more beneficial to the beautification and modification of the human voice.
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