Hello, everyone, Xiaozhuo again ventured.
How much money can you buy from a previous qualifying home theater? The enthusiastic response to the sharing of audio and video equipment to experience the experience, everyone is very enthusiastic about how to buy a home theater. Although from the review point of view, basically veterans dismissively, novice clap applause, two levels of differentiation, but everyone's support is the biggest motivation.
Xiaokao braved the hail of bullets, and ventured to buy a home theater AV amplifier . The purpose was to dig deeper and deeper and spread basic knowledge .
Home theater amplifiers have many aliases: AV power amplifiers, AV receivers, AV amplifiers, AV receivers, and so on are all actually the same thing.
Why should we put the home theater amplifier in the first place, because it is the core of the entire theater, mind. All the theater information is processed by the amplifier and sent to different back-end devices such as speakers, subwoofers, televisions, projectors, etc.
To come to an old map, everyone understands the core role of power amplifier.
Let's see it. It's the core brain that says it's nice to hear. The front is to be inserted by the signal source, the back is to be inserted by the display device, but also with a bunch of speakers to do oil bottle , that tired Oh. Even if it is so important, power amplifiers are often the most overlooked devices. It is often placed in an inconspicuous position, or even in a small dark house. Everyone prefers to spend money in places that are easy to see.
I hope I can listen to the tips of Xiaozhuan today. I will be able to have a clearer understanding of the theater amplifiers and understand Viva.
“Open your eyes and look at chrysanthemums, sell them by weight, buy new ones and don’t buy old onesâ€
It is the three irons for the amplifier.
Chrysanthemum articles:In general, the amplifiers look almost the same from the front, and they are all black and white. But the real use is to insert chrysanthemum in reverse. So the first choice of amplifiers: whether chrysanthemum is beautiful, represents the grade of this amplifier.
First look at the appearance of a high-end machine chrysanthemum.
High-end amplifier rear
How? Exquisite, large and small, colorful, wood has a desire to fill it. Unfortunately, it's generally not possible to insert full-filled cards.... Because ordinary people don't have so many devices at home. It's amazing that a valued friend can fill a quarter of his mouth.
Xiaochao class started
Seemingly complex, in fact, simple, in fact, there are so few commonly used interfaces , connected to the home theater after finishing the work.
In order to eliminate the intensive fear of the introductory valued friends, Xiaoshao took Chrysanthemums of the Anqiao TX-RZ800 as an example to explain what the most commonly used interfaces were, so that the amplifier could not get the hands (cha) foot (cuo) without ( Ju) measures (hua).
HDMI interface
HDMI interface
The amplifier has the most cattle x wood. From the 4k video to the self-timer movie, the hum of the Dolby panorama to the big sisters can be transmitted through a single line and an interface. Feeling tall wood. At present, all basic video entertainment devices are equipped with an HDMI output port, HD box, Blu-ray player, PS4, set-top box, and how much are all plugged in here. The number is absolutely sufficient.
At present, the entry amplifier will generally be equipped with 5-6 HDMI input interfaces, high-end opportunities have more than 8 inputs, plus 2 output ports, why? You can output the signal to both the TV and the projector at the same time.
HDMI connection tips:
- The HDMI input (IN) can be connected to multiple devices. By switching different channels, the corresponding audio and video information of the device can be transmitted to the power amplifier. Then through an HDMI output (OUT), the image is output to the TV or projector. Since then, mothers no longer have to worry about TV's HDMI port is not enough.
- Be sure to turn off the power of the unit when removing or plugging the HDMI cable, otherwise it is easy to burn the interface.
Speaker terminal
Speaker terminal
The speaker can make a sound, relying on the strength here. Normal 5.1 configuration Simply put your left and right main speakers (FRONT L/R), CENTER, and SURROUND L/R speaker cables together to make a sound. When connecting, pay attention to the positive polarity (+/-).
Wiring Tips:
- Although the positive and negative poles are connected to the wrong horn, they will still sound, but the sound will become very strange.
Finally don't forget to plug your active subwoofer's signal cable into this subwoofer signal output (SUBWOOFER ).
Subwoofer signal output interface
Well, a 5.1 home theater system is connected. It's not easy. It's not difficult to do it yourself.
class has ended
Seeing here, there is a natural saving, and friends who are unwilling to waste the resources of the earth can not help but confess: What do I have to ask for so many interfaces? Look at it. Um, right, these chrysanthemum mouths are waiting for the owner's fortunateness. As experience and needs continue to grow, one day you will use all the interfaces.
On the other hand, for those who only want to sit quietly and watch a movie, they don't want to have more torment. They can choose to use entry-level amplifiers. Similarly, we expose the chrysanthemum of this machine:
Entry model back
How, there is a feeling of refreshing wood, can save the province, do not use the common. But the necessary port is a lot. The budget fully meets the requirements of entry-level friends.
Tips:
Some models of low-end machines may simplify the speaker terminal posts into the form of the following clips.
Clip terminal
Advantages: easier connection
Disadvantages: Too rough to insert oh (speaking... horn line)
Weight articles:The more electronic products are made, the lighter and more valuable they are. In the world of power amplifiers, this rule no longer applies. This is a world in which weight, heads, and power struggle.
Gossip to say less, directly on the weight of the whole series of power amplifiers on the bridge form:
Amplifier weight comparison
Conclusion: As the power and the number of channels increase, the weight of the amplifier will increase exponentially and the price will increase exponentially.
Small fire buckets are graded according to their weight (not absolute, but of general reference significance)
7-10kg: Entry Model
10-15kg: Mid-range models
15-20kg: High-end models
>20kg: flagship model
In this case, mothers no longer have to worry about losing money when they buy power amplifiers. Value friends smashed the hands of the amplifier, experienced and the owner began to bargain: " Boss, this thing is so light, certainly not what advanced goods, cheaper! ".
Power amplifier selection tips:
How to choose the right model according to your own situation?
a. According to the budget . The amplifier's budget should generally be about 1/2 of the total speaker price (not including the subwoofer).
b. According to the number of speakers. From 5.1 to 7.1, to 9 or even 11 speakers for panoramic sound, a horn needs one channel to push, so there is always a power amplifier for you.
Count the number of speakers in the picture below?
5.1.4
c. According to the horn type. The same 7 channel amplifier, power can be doubled. The larger the horn, the greater the power required. Under normal circumstances, a small bookshelf can be fully used to push the entry amplifier; large floor box at least use the mid-range amplifier to push, if you still have an oversized center speaker, want to get a movie theater-like strong, it is recommended High-end amplifier.
Bookshelf VS landing
The speed of replacement of electronic products is very fast, and the cinema amplifier is the fastest product in the home theater .
Why? Because there is such a bunch of full-fledged (not derogatory) scientists, constantly tossing something new every day. Then those manufacturers who produce power amplifiers have to introduce a new generation of products every year in order to incorporate these new technologies into the power amplifier. Therefore, the mainstream Japanese movie theater amplifiers are replaced every year.
How do value-friends choose? Please refer to the following three sentences:
"Buying new ones does not buy old ones. It mainly depends on demand. Enjoy early buying and early delivery."
First of all, let's compare the difference between the two power amplifiers with the same level for three years.
New products this year:
3 years ago
Function comparison table:
how is it? Did you feel the progress of science and technology and the times?
Then, value-friends can start to choose the right product based on their own needs:
- Want to listen to songs on your phone , choose Wifi, Bluetooth, AirPlay
- Want to experience 3D sound effects , choose panoramic sound, DTS:X (the latest demo clips and demos, you can go to this site to download)
- Want to see the latest 4K Blu-ray discs , choose HDMI 2.0 and HDCP2.2
- Don't buy anything that you don't want... Oh no, you can choose stocks a few years ago
Tips:
The effects of cinema amplifiers rely on online video, domestic TV dramas, and the so-called high-definition movies with 1, 2 G capacity downloaded on the Internet. Value-friends need to use genuine Blu-ray discs or Blu-ray original discs (for more details, please refer to the previous experience sharing of Xiaoyak). For the latest Dolby Panasonic and DTS:X, this type of 3D immersive sound effects requires the latest demo disc to open. Here is a recommended DEMO demo download site: DEMO51
Finally, keep in mind, "Buy early and enjoy early," and buy it. No one can accurately predict what kind of new technology will appear in the future. When you enjoy a wonderful movie, everything else is no longer important, what Aunt Zhang, what function parameters, what model brand.... Take advantage of the equipment in your hand. A cinema amp is enough for you to use for many years and see hundreds of wonderful movies, value and worth, and your own judgment.
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