• Computer Connected to Speaker

    Classification And Main Functions Of Home Audio

    Home audio is usually divided into pure audio and home theater audio. Pure audio is also called HI-FI audio, which is composed of pure power amplifier (only two channel output), speakers and disc player, and is generally used to listen to music and songs. Home theater audio is also called AV combination audio, which can play music and songs in two channels, as well as multi-channel discs. “Audiophiles” generally play pure audio, and mainly listen to Western classical music.

  • HDMI 2.1 Cable

    Inventory the longest transmission distance of VGA, DVI, HDMI, and DP cables, it is easy to choose a cable(Part II)

    In our daily work and entertainment, we cannot avoid contact with computers, TVs, projectors and other equipments, which are inseparable from various video output interfaces. Nowadays, there are all kinds of connecting cables on the market, and we are always confused about when and where to use which kind of cable. The most commonly used video cables on the market are: DVI, VGA, HDMI, DP, what is their limit transmission distance? Can a video cable be used for a transmission distance of 50m? These questions need to do enough homework before we choose the video cable. The following is an inventory for everyone, so that the friends can be better targeted when choosing the video cable. ③HDMI cable The HDMI is a high-definition multimedia interface, which is a very efficient transmission interface for all-digital images and sounds, which means that only one HDMI cable can transmit high-definition video signals and audio signals at the same time. HDMI2.0 supports up to 4K@60Hz Ultra HD resolution. The quality of HDMI cables on the market varies from good to bad, and most HDMI cables experience severe signal attenuation when the transmission distance exceeds 10m. The longest distance of the ordinary copper HDMI cable is about 15m, but generally more than 8m, 4K HD is no longer supported. The HDMI cable with built-in signal amplifier can transmit 80m of 1080P video, and the optical HDMI cable can transmit 4K@60Hz video over 300m. ④DP cable DP is currently a more advanced and complete interface, it …

  • VGA Cable

    Inventory The Longest Transmission Distance Of VGA, DVI, HDMI, And DP Cables, It Is Easy To Choose A Cable(Part I)

    In our daily work and entertainment, we cannot avoid contact with computers, TVs, projectors and other equipments, which are inseparable from various video output interfaces. Nowadays, there are all kinds of connecting cables on the market, and we are always confused about when and where to use which kind of cable. The most commonly used video cables on the market are: DVI, VGA, HDMI, DP, what is their limit transmission distance? Can a video cable be used for a transmission distance of 50m? These questions need to do enough homework before we choose the video cable. The following is an inventory for everyone, so that the friends can be better targeted when choosing the video cable. ①VGA cable The history of the VGA interface can be traced back to 1987. The blue plug is generally used, and it is also the most recognizable interface. The VGA interface has 3 rows of pins, 5 in each row, totaling 15 pins. Our childhood memories—Big head monitors use VGA ports. The VGA interface transmits analog signals with weak anti-interference ability and supports a maximum resolution of 1080P. The transmission distance of the 3+4/6 VGA cable is 15-30m. The oxygen-free copper VGA cable with thick conductor and good shielding can reach a transmission distance of 30m, and the inferior VGA cable over 15m will cause image quality problems such as smear and blur. ②DVI cable The maximum resolution that the DVI interface can support is 2560 x 1600, and the refresh rate is 60Hz, which …