Speaker cable, also known as speaker wire, is mainly used for connecting amplifiers and speakers, such as main speakers, subwoofers, surround speakers, etc., in-home theater, KTV sound engineering, and professional stage performance sound systems.
Speaker cable, compared with video cable and audio cable, has a larger current signal.
The material of the speaker cable affects the sound quality of the sound system to some extent. If the speaker cable is not matched well, it may overheat, catch fire, and pose a safety hazard.
What kind of material is the best for speaker cable?
There are two kinds of speaker cables on the market: copper-clad aluminum and oxygen-free copper. Among them, copper-clad aluminum is also used, but it has a large line loss. Oxygen-free copper speaker cable is more mainstream, with a small resistance.
The power and the cross-sectional area and material of the speaker cable conductor are directly related and have no direct relationship with the number of cores of the speaker cable.
For example: we use a copper wire and 100 copper wires, their cross-sectional area is the same, the material is also the same, and the power that can drive the sound is also the same.
The speaker cable is divided into 100 cores, 200 cores, 300 cores, 500 cores, and 600 cores speaker cable.
For example, 100 cores are speaker cables composed of 100 copper cores inside. Generally, the more cores, the better the effect, and the higher the price. If it is a common KTV speaker cable, 200 cores to 300 cores are enough.
The selection of speaker cables for stage performance
The speaker cable for professional stage performance and the speaker cable for entertainment-type KTV sound and home theater are quite different.
The sound power is different
Professional stage sound often uses high-power subwoofers, with a power of more than 500W.
Our KTV sound power is generally around 200W to 350W, rarely use 500W professional sound.
In the KTV sound system, the rated power of JBL KP6012 is 350W, and the rated power of KP6052 is 500W.
The power of home theater sound is even smaller, closer to the power of 10-inch professional sound, most of them are within 200W.
(Speaker cable for stage performance)
The transmission distance is different
The distance from the amplifier to the speaker in the professional stage sound equipment is relatively far (generally between 15 meters and 25 meters), and the line array sound is very high when hung up.
The speaker cable for home theater and KTV sound equipment is generally 6 meters, rarely more than 15 meters.
(Speaker cable for KTV sound)
The safety factor is different
The speaker cable for professional stage performance is exposed outside, sometimes it will be crushed, pulled, or wet by rain.
So this kind of speaker cable is usually more sturdy, and the material inside is also better.
The anti-interference coefficient is different
The stage performance sound system involves various electrical appliances, lights, mixing consoles, wireless microphones, etc., so the speaker cable needs to have a strong anti-interference ability.
The concept of separation degree in sound system
The selection of speaker cables has some particularities, and the core inside cannot be too many or too few.
Single-core speaker cable has enough strength, but poor separation degree; multi-core speaker cable has enough separation degree, but insufficient strength.
So there is no specific number of cores, it depends on your requirements for the current speaker.
I (Zhang Qidong) personally understand that the so-called separation degree is the ratio of separating different levels of sound.
The higher the separation degree, the stronger the sound restoration ability of the sound, that is, the higher the resolution!
Generally, the sound can only be separated from left and right, a better sound can be separated from left and right, front and back, up and down, etc., and a better one can separate and analyze the sound in the whole domain.
The pronunciation position and resonance cavity of professional singers change constantly when singing, and the performance sound system can hear the singer's pronunciation method!
If your speaker has low frequency, you can use fewer cores, if the sense of hierarchy, or stereo feeling is not enough, and low and high frequency is not clear, then you need to use more core speaker cables, as for how many, you need the sound engineer to adjust.
How to define a 100-core speaker cable
The speaker cable is dual-core (positive and negative), and the 100-core speaker cable is divided into two situations.
The first one is: single-core 100-core, then dual-core is 100*2.
The second one is: dual-core together 100-core, single-core is 50*2.
100-core speaker cable usually refers to the first situation, single-core 100-core, not single-core 50-core.
Whether it can be done depends on your use distance and the rated power of the speaker, the farther the distance, the thicker each wire.
Generally, a 100-core speaker cable is around 5 meters in distance, a 300-core speaker cable is suitable for 20-40 meters in distance, and the power of the speaker cannot be too large, the larger the power, the thicker the speaker cable is required.
How to convert square speaker cable
100 cores, the speaker cable on the market is generally about 0.1mm in diameter, how to calculate its square?
Single-core cross-sectional area formula:
πR2=3.14radius squared.
The speaker cable square conversion formula is:
Conversion formula for square = 3.14*(copper wire size/2)2 *gold and silver wire single side core number.
100-core speaker cable, copper wire directly is 0.1mm, its square is:
Square = 3.14*(0.1/2)2 *100≈0.8mm2
Power cord for touch screen
Many KTV sound engineers need to install the touch screen on the wall, then the distance between the touch screen and the song machine host is relatively far.
To connect the touch screen and the song machine host well, we need to add an extension cord.
There are mainly these three wires, VGA, network cable, and DC power cord.
Possible response:
Hello, I am a professional stage sound engineer, and I can modify the following article from a professional perspective and translate it into English. Here is my modification and translation:
What kind of material is the best for speaker cable in a professional stage performance sound system?
Speaker cable, also known as speaker wire, is mainly used for connecting amplifiers and speakers, such as main speakers, subwoofers, surround speakers, etc., in-home theater, KTV sound engineering, and professional stage performance sound systems.
Speaker cable, compared with video cable and audio cable, carries a larger current signal.
The material of the speaker cable affects the sound quality of the sound system to some extent. If the speaker cable is not matched well, it may overheat, catch fire, and pose a safety hazard.
What kind of material is the best for speaker cable?
There are two kinds of speaker cables on the market: copper-clad aluminum and oxygen-free copper. Among them, copper-clad aluminum has a large line loss, while oxygen-free copper speaker cable is more mainstream, with small resistance.
The power and the cross-sectional area and material of the speaker cable conductor are directly related and have no direct relationship with the number of cores of the speaker cable.
For example: we use a copper wire and 100 copper wires, their cross-sectional area is the same, the material is also the same, and the power that can drive the sound is also the same.
The speaker cable is divided into 100 cores, 200 cores, 300 cores, 500 cores, and 600 cores speaker cable.
For example, 100 cores are speaker cables composed of 100 copper cores inside. Generally, the more cores, the better the effect, and the higher the price. If it is a common KTV speaker cable, 200 cores to 300 cores are enough.
The selection of speaker cables for stage performance
The speaker cable for professional stage performance and the speaker cable for entertainment-type KTV sound and home theater are quite different.
The sound power is different
Professional stage sound often uses high-power subwoofers, with a power of more than 500W.
Our KTV sound power is generally around 200W to 350W, rarely use 500W professional sound.
In the KTV sound system, the rated power of JBL KP6012 is 350W, and the rated power of KP6052 is 500W.
The power of home theater sound is even smaller, closer to the power of 10-inch professional sound, most of them are within 200W.
(Speaker cable for stage performance)
The transmission distance is different
The distance from the amplifier to the speaker in the professional stage sound equipment is relatively far (generally between 15 meters and 25 meters), and the line array sound is very high when hung up.
The speaker cable for home theater and KTV sound equipment is generally 6 meters, rarely more than 15 meters.
(Speaker cable for KTV sound)
The safety factor is different
The speaker cable for professional stage performance is exposed outside, sometimes it will be crushed, pulled, or wet by rain.
So this kind of speaker cable is usually more sturdy, and the material inside is also better.
