Matrix-encoded stereo sound can again be transformed into a 5.1 signal (Dolby Pro Logic II and IIx). Today’s models can continuously decode various forms of digital audio formats, which can be played via a RCA cable (S/PDIF) or optical fiber.

AV receivers are multi-channel hi-fi amplifiers used on the Best Android TV Box. Different audio and video sources can switch to their analog and digital outputs. To the outputs of an AV receiver connects TV sets, video projectors or even additional power amplifiers, for example, speakers. Some AV receivers have a network connection, the additional multimedia files from the local network or the Internet can be reproduced.

AV receivers are equipped with multi-channel amplifier with at least five sound and a subwoofer channels (5.1) up to 11 models with sound and subwoofer channels 2 (11.2). You can decode various audio formats and convert them into surround sound.

In addition, some models can process the video input and output devices for high-definition (HD).Due to their versatility and the ability to implement surround sound, AV receivers are a key component for home theaters.

Blu-ray discs, DVD-Audio and SACD discs often contain very high quality digital audio formats (such as DTS HD Master Audio, Dolby TrueHD, DSD) that need to be linked to the AV receiver via its HDMI inputs for HDMI only interfaces that can transfer the necessary high data rates from the player to the AV receiver.

Teletica Repretel HD and HD channels are the only ones in Costa Rica to broadcast in HD, though, thanks to the different systems of pay TV, you can enjoy various international channels in HD, for example ESPN HD, Fox Sports HD, Discovery Theater HD, Food HD, HGTV HD, Movie City HD, CNN HD, among others.

In South Africa, the etv channel introduced its Openviewhd offering in mid-October 2013. The expanded free to air program also offers HD movies as part of the bouquet. CRT monitor

On an analog CRT monitor and Best Android TV Box, pixels may show only the average signal modulated beam during scanning exposure. It is not possible to address the phosphor individually, because it is impossible to exactly match the electron beam with the fixed mask to avoid exposing a phosphor located 3 subpixels before or after or 1 pixel above or below.

Furthermore, most CRTs have a unique grid for three colors, only the beams being offset angularly so that the beam passing through the mask exposes the phosphor of the correct color component.