The speaker cable is used to connect the power amplifier and the speaker, in which the signal current circulating is much larger than the video cable and audio cable mentioned above. Because of the large signal amplitude, such cables often have no shielding layer. For this kind of wire, the key is to reduce its resistance. Because the output resistance of modern power amplifier is very low, the requirements for speaker cable are also improved, such as choosing large cross-sectional area or multi-stranded wire. Wires range from pure copper to silver wire, and one of the more expensive speaker wires is oxygen-free copper speaker wire, which is characterized by good conductivity and low resistivity, and the timbre used to reproduce sound is greatly increased.
According to the classification of household speakers, it can be divided into home theater speakers (generally 6 speakers) and HIFI music speakers (two speakers), commonly known as fever speakers.
HIFI speakers are used to restore the recording sound field with high fidelity, and the lossless transmission of audio signals should be guaranteed enough. Generally, transmission lines have different impedances for signals with different frequencies, and this impedance is characterized by unclear sound during sound reproduction. Therefore, people have produced an advanced speaker connection line called intelligent signal line. The characteristic of this line is to divide the signal into two channels according to the frequency. The outer wire with a certain thickness passes the signal above 5KHZ, and the signal below 5KHZ is transmitted through the inner wire, which greatly improves the frequency characteristics of the transmission line and makes the reproduced sound clear and transparent. However, the price is very expensive. Most of the brand audio cables mentioned above also produce heating speaker cables.
Types of audio lines
Audio line:
Audio cable is used to connect audio source equipment and power amplifier. The audio cables with good quality in the market are mainly made of gold, silver and copper oxide, and most of them are imported cables with high nonmetallic carbon content, but the price is relatively expensive, usually several hundred yuan, mainly including MONSTER STANDRDINTERLINK, AUDIO0UEST, SUPRA, M0NITERPC, and Space & TIME (Time), MISSION (Bel Canto), PATRDNICS (Bailey) and VDH. For common audio equipment (below 10000 yuan), it is not necessary to deliberately pursue the high quality of wire, as long as the copper core signal wire with large cross section is used. For better home theater audio equipment, we can consider using high-quality audio cables. For example, DVD players and "AC-3" decoders have optical fiber output and input interfaces. If the optical fiber transmission line is used, the timbre can be obviously improved.
Audio line: a set of audio lines is often two, divided into left and right channels, and both ends of the line are shower heads (RCA heads).
Coaxial cable: used to transmit multi-channel signals (Dolby AC-3 or DTS signals), similar to audio cables. Because of the large signal, connectors and cables are thicker than ordinary audio cables, which are generally used to connect DVD players and power amplifiers.
Optical cable: It is also used to transmit multi-channel signals (Dolby AC-3 or DTS signals) and connect DVD players and amplifiers.
Microphone cable: a coaxial cable with two cores, which is used to connect the power amplifier with the microphone. At present, the rise of wireless microphone, if not for special consideration, can not be considered when wiring, wireless microphone will certainly be more and more widely used in the future.
Audio cables are basically not considered when wiring, because audio equipment and power amplifiers are often put together, and these cables are very short and can be configured later.
It depends on your choice.