1、济南汽车音响http://www.sdcarmusic.com/端子主要用途在使接点阻抗降低、施工方便、美观、安全，一般市面贩售的端子为镀锡制品，反而会增加阻抗这并非专业，济南汽车音响所愿意使用的，为使其接点更好的例如镀金、镀银、镀铑等，但镀银及镀铑的成本上高出很多，所以目前还是较普遍使用镀金端子。
Jinan car audio terminal main purpose in making contact impedance decreases, construction convenience, aesthetics, safety, general market to sell the terminal for tinned products, but will increase the impedance of this is not professional, Jinan car stereos are willing to use for making contact better example gold, silver, rhodium, etc., but much higher than the cost of silver-plated and rhodium-plated, so now is the more widespread use of gold-plated terminals.

2、济南汽车音响保险丝、保险丝座其主要用途在于“保护”，一方面保护扩大器，避免扩大器受到超过其负荷的电压源或电流源的影响，而造成扩大器本身得损坏。一方面保护电源，避免电源受到人为或其它因素影响，造成短路，而产生电池打穿、爆裂的危险。
Jinan car audio fuse, fuse holder and its main purpose is to "protect", on the one hand to protect amplifier to avoid expanding beyond its load is affected by the voltage or current source, and the resulting expansion of itself was damaged. On the one hand to protect the power supply to avoid man-made or other factors affected, causing a short circuit, and produce batteries penetrated danger of bursting.

3、济南汽车音响接地座当使用的器材较多时，为避免分散接地而产生电位差、产生电阻影响电源电流的通畅性，所以使用共同接地座，达到电源通畅。     
When Jinan car audio equipment grounding seat when using more, in order to avoid dispersion of a ground potential difference is generated, the impact resistance of the supply current generated patency, so the use of common ground base,to achieve power patency.

4、济南汽车音响http://www.sdcarmusic.com/滤波器有电源滤波器、讯号滤波器、隔离网等。滤波器主要用途在消除噪声，使声音由喇叭出来时没有其它杂音，但是电源或讯号滤波器，在非必要时能不用尽量不要用，因其在消除杂音时同时会产生压降及降低音响本身讯号的dB值，可能会漏失掉少许该有的声音，所以建议安装者如果可以，先用其它方法处理，当其它方法无法处理时才考虑使用电源或讯号滤波器。像隔离网为非导电PE材质，包覆于线材上，不仅可保护线材，更可净化线材内部噪声、避免外界噪声干扰，虽然不用直接焊接于在线，但使用起来必有意想不到的效果。  

Jinan car audio filter has power filters, signal filters, isolation net. The main purpose of the filter to eliminate noise, the sound from the speaker when no other noise out, but the power or signal filters, when non-essential can not try not to use, because when you eliminate the noise generated at the same time reduce the pressure drop and the sound itself dB value of the signal, you may lose a little leak that some sound, it is recommended that the installer if you can, to use other means, and when other methods can not only consider the use of power or signal processing filter. Net non-conductive PE as isolation material, coated on the wire, the wire can not only protect, but also purify the wire internal noise, avoid external noise, though not directly welded to online, but must use an unexpected effect.