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在音响改装中,往往会碰到这样的情况,车主要在保留原车音响主机的基础上加功放及换喇叭升级音响,由于原车主机的音频信号需要输入到外接功放中进行放大,所以要想在这种情况下为原车升级音响,就必须先解决这个信号问题。通常有两种方法去解决:第一种方法是直接从主机中改出RCA低电平信号。这需要把主机拆开,并要求改装技师对主机的电路结构非常熟悉,同时还要考虑开关机静音控制、
In the audio conversion, often encounter such a situation, the car owners to retain the original car stereo based on the amplifier and change the speaker to upgrade the audio, the original car host audio signal needs to be input to the external amplifier for amplification, so to Want to upgrade the sound in this case for the original car, you must first solve this signal problem. There are usually two ways to solve: The first method is to directly change the RCA low level signal from the host. This need to disassemble the host and asked the technician to modify the host of the circuit structure is very familiar with, but also consider the switch mute control,