Audio Cables- What You Must Know To Optimize Your Sound System
If you just listen to background music, new shows, etc., you can use the cheap audio cables that come in the package with your audio components. But only if you are not too concerned about sound quality and what components you are hooking up to the cables. Usually you will invest about 5-7% of the systems cost in your cables. This is usually adequate. Several types and many brands of audio cables can be found.
People who want improved sound quality for listening can find something in their price range from cable specialists. Specialized cables provide optimum sound quality and are very sturdy. These are a better alternative to generic speaker cables which offer lower sound quality and aren't as sturdy. Although the specialized cables may be affordable, the cost still could be several hundred dollars for the speaker cables or analog audio interconnects. Some people may find that the extra money spent is well worth the benefits of better sound and pride in owning the very best in audio equipment.
Analog audio cables, audio video cables, audio speaker cable and digital cables are the four basic types of cables that can be used to transfer sound. These cables transfer the audio signal from point A to point B unaltered. You control the amount of Resistance, Inductance, and Capacitance thereby minimizing losses at audio frequencies.
To pass analogue line level audio signal between componets, RCA connections are employed. RCA audio cables are joined in stereo couples, with a connection for the right channel and one for the right channel of audio. For line level analogue connections it is a good idea to employ cables which have low capacitance and properly shielded to avoid interferences and external noises from getting to mix to the signal.
Video Cables are possibly the most important as the signal that is passed through is at a very high frequency. As the frequency increases it becomes more critical to ensure adequate shielding, solid terminations and proper impedance that audio video cables provide. Therefore it is necessary for a video cable to be adequately shielded and maintain characteristic impedance.
Audio Speaker cables can be ended with spade lugs, metal pins, banana plugs, or bare wire and are normally fairly thick with two conductors. To minimize contact resistance there needs to be the tightest connection of the cable to the loudspeaker and amplifier. Do not loop excessive cables and keep speaker cable runs as short as possible so that cable inductance is not increased.
Digital audio cables are a special group of their own. Of these there are two types: coaxial and optical. Coaxial digitals look just like standard analogs, but transfer digital audio rather than analog, while optical cables use light as a transmission method for audio signals. These types are also usually a single cable, where analog types are generally double plugs to stereo sound.
Depending on your choice of audio requirements for sound quality, there are a host of cables available in the market. Most general purpose users do not need to look at the brands and quality of cables and the cheapest ones that come packages with the equipment work fine. Choosier customers may have to spend several hundred dollars to satiate their high quality desires. The main objective of these specialized cables is to transmit audio signals from one point to another unchanged. This involves minimizing losses by controlling Resistance, Inductance and Capacities at audio frequencies. Various specialized audio cables include audio video cables, audio speaker cable, analog ones and digital cables.
Published August 9th, 2007
Filed in Computer, Technology
