Understanding the basics of audio/video cables
There are a few basic concepts that you need to understand before choosing audio/video cables:
1. Transmission Method: AV cables are mainly used to transmit audio and video signals. Common transmission methods include analog and digital.
*Analog signal transmission
- Easily subject to external electromagnetic interference
- The longer the transmission distance, the greater the signal attenuation
- Commonly used in old-fashioned audio equipment connection
*Digital Signal Transmission
- Strong anti-interference ability
- Supports higher bandwidth
- Simultaneous transmission of audio and video signals
2. Wire type: common audio and video cables include audio cables (such as RCA cables, fiber optic cables), video cables (such as HDMI cables, VGA cables) and hybrid cables.
* Audio Cable Types
- Suitable for analog audio transmission
- Commonly used in CD players, amplifiers and other equipment
- Usually requires separate connections for left and right channels
- Professional audio transmission standard
- Better anti-interference performance
- Suitable for long distance transmission
Optical fiber cable
- Completely isolated from electromagnetic interference
- Support multi-channel digital audio
- Lossless transmission characteristics
*Video Cable
HDMI cable
- Supports high-definition video transmission
- Simultaneous transmission of audio signals
- Different versions have different bandwidth specifications
DisplayPort cable
- Supports higher resolution
- Suitable for professional display devices
- Designed with locking function
3.Signal Loss: Different materials and lengths of cables can affect the quality of signal transmission, choosing low-loss cables can reduce signal attenuation.
Choosing the right AV cable for your device
- Equipment matching: Make sure the cable you choose is compatible with your equipment, for example, when choosing an HDMI cable, make sure it supports the HDMI version of your equipment.
- Consider the signal quality: For digital signal transmission, choosing good quality cables with good shielding performance can reduce signal interference and improve picture and sound quality.
- Cable length: choose the right length of cable, too long a cable will increase signal attenuation, affecting the quality of audio and video.
- Material and manufacturing process: High quality cables usually use high purity copper conductors, metal shielding and high quality connectors, all of which will have an impact on sound and picture quality.
Precautions before purchase
- Brand reputation: Choose cables from well-known audio cable brands to avoid damage to your equipment by purchasing inferior products.
- Price budget: choose the right cable according to your needs and budget, you don’t have to buy expensive cables, but don’t buy low quality products to save money.
- After-sales service: Choose brands and channels with good after-sales service and warranty policies so that you can get timely support when you have problems in the future.
When choosing audio and video cables, you need to comprehensively consider factors such as equipment needs, signal quality, material and craftsmanship, etc. Choosing the right audio cables for your equipment and needs can bring you a better audio-video experience. We hope that the above guide can help you better buy the right audio and video cables for your equipment.