AV power amplifier various interface connection methods

Articles on home theater TV connection skills are introduced on the Internet, and there is less information on how to connect with AV amplifiers. In fact, the AV amplifier is the backbone of the home theater. It is an amplifier that is used together with the image source to produce the effect of audio-visual integration, and is designed for the purpose of creating a sound field. As the center of the home theater, the amplifier should be connected to a player with a minimum of 5 and more than 10 speakers. Players with more equipment also need to connect multiple players, such as DVD, CD, HTPC, Blu-ray disc player, HD DVD player, PS3, XBOX 360, hard disk player, IPOD, etc. Some have to connect video devices, in short, Behind the amplifier are dense interfaces and wiring, many of the introductory players who do not understand see the scalp numb. To this end, let's take a look at the methods and techniques for connecting various AV amplifiers, especially new next-generation AV amplifiers, from shallow and deep.

"The three armed forces have not moved, grain and grass first", here before we talk about the connection, we also talk about the various interfaces and wires connected with the power amplifier. Nowadays it is the era of digital transmission, so here we only talk about digital transmission, and the simulation aspect is not mentioned for the time being. The most popular now is HDMI. In many new products, the HDMI interface has become a standard configuration. HDMI is a new generation of multimedia interface standards. Currently, there are various specifications such as HDMI 1.0, HDMI 1.1, HDMI 1.2, HDMI 1.2a, HDMI 1.3, etc. The HDMI interface of the new generation AV amplifier has become a must. From the beginning of the HDMI 1.0 specification, the HDMI organization defined support for DolbyDigita 5.1 (including Dolby DigitalEX) and DTS (including DTS-ES). HDMI 1.1 adds support for DVD-Audio, and HDMI 1.2 adds SACD. HDMI 1.3 adds support for the new lossless digital surround audio formats, Dolby True HD and DTS-HD Master Audio, so if you want to enjoy true next-generation audio, you must choose an amplifier and player with HDMI 1.3 specifications.
AV amplifier rear wiring port In addition, HDMI (except version 1.0) is capable of transmitting 8-channel 192 kHz, 24-bit uncompressed audio, which is superior to all other consumer audio formats. Therefore, if the player can decode the audio format into multi-channel PCM, then any of the above audio formats can be transmitted in the form of a decoded PCM stream. In this way, many legacy A/V receivers that support the transmission of multi-channel PCM audio over the HDMI input can still be used to play updated Dolby True HD and DTS-HD Master Audio formats. Home theater network shopping guide network welcomes you!



In addition to HDMI, the transmission of digital audio signals mainly depends on two ways: digital coaxial cable using standard RCA interface and SPDIF optical fiber transmission, both of which can achieve the goal of transmitting digital audio signals better. Coaxial cables have a relatively complete shielding layer, and the copper core in the middle is the signal transmission channel. The transmission of digital audio signals by using 75 ohm coaxial cable is a very mature and high quality method. This interface standard has lower hardware requirements on the device side, but when transmitting high frequency signals, it is prone to relatively large attenuation, which affects the final sound quality. Compared with coaxial transmission, the requirements for the synchronization of the receiving and transmitting ends of the optical fiber are very strict, and it is technically more difficult to achieve than coaxial. However, the advantages of optical fiber technology in long-distance transmission are very obvious, and coaxial cable does not appear. The long-distance attenuation is too large, so it has also been favored by many distance-limited and newly renovated users.

(1) Connection of various high-definition players with next-generation amplifiers

If you want to build a true theater of this generation, the amplifier must support the HDMI 1.3a standard and support decoding such as Dolby BTrueHD and DTS-HD MA. There are many real next-generation amplifiers, such as Tianlong AVR-4308, AVC-3808, AVC-2808, AVC-2308, etc.; Onkyo TX-NA905, TX-SA875, TX-SA805, TX-SR803, TX-SA705, TX -SA606X, etc.; Marantz SR7002 and SR8002; Pioneer VSA-AX1AH, Sony TA-DA5300ES, YAMAHA's RX-V1800, RX-V3800, etc.

The real next-generation amplifiers usually have multiple HDMI 1.3 interfaces. For example, the TA-DA5300ES provides six HDMI 1.3 inputs and one HDMI 1.3 output, so it is very convenient for the entire home theater connection, for example, you all With Blu-ray disc player, PS3, XBOX360, hard disk player, HD set-top box, HTPC, you can connect all the six HDMI interfaces of TA-DA5300ES power amplifier at one time. When you want to use which player, you only need to select it. The remaining HDMI output can be output to the TV. Of course, if your amp's HDMI input is not that much, you can only connect less peripherals.

b) The connection between Blu-ray or HD hard disk player and ordinary power amplifier

If you have a Blu-ray player or an HD DVD player, they must all have an HDMI interface (generally new products come with HDMI 1.3, previous products may be 1.1 or 1.2), and they also have coaxial digital Output and optical digital output interface, then it and the ordinary power amplifier (here, the ordinary power amplifier is non-HDMI 1.3 port, does not support Dolby BTrueHD and DTS-HD MA decoding amplifiers) access methods have three, and these three The method is also suitable for all kinds of high-definition players with HDMI interface, including high-definition hard disk player, high-definition set-top box, high-definition DV and so on.



(1) If your Blu-ray player or HD DVD player only has one HDMI output interface, and the amplifier does not have an HDMI interface, only the coaxial or optical interface (the general amplifier has both interfaces or one of them) Then your connection method is to input the HDMI of the player into the TV through the HDMI interface. (The situation mentioned here is that the TV has an HDMI interface. If the TV does not have an HDMI interface, it can be input through the DVI, the color difference line or the S video terminal. The same as here, no special explanation), the audio signal is input to the power amplifier through the optical fiber or coaxial.



(2) If your Blu-ray player or HD DVD player only has one HDMI output interface, and the amplifier also has 2 HDMI interfaces (the most basic configuration of the amp with HDMI interface is 1 HDMI input 1 HDMI Output), then your connection is to insert the HDMI output interface of the player into the HDMI input interface of the amplifier through the HDMI cable, and the HDMI output interface of the amplifier is connected to the TV.



(3) If your Blu-ray player or HD DVD player has two or more HDMI output connectors, and the amplifier also has an HDMI interface, then your connection is to input the two HDMI interfaces of the player. Amplifier, all the way into the TV. The method of point (2) can also be used.

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