[Sound changes depending on how you install] About the remote of external power amplifiers

There are various tips and theory in the installation work of the car audio unit.This corner is trying to tell the depth of car audio while introducing them.Currently, it explains this and other things related to the installation of "external power amplifier".

This time, we will continue considering points regarding the wiring of the power supply system.To date, the wiring on the positive side and the wiring on the negative side are explained, but in fact, the wiring of the power supply system does not end with this alone.Another important wiring work is left.

Another important wiring work is a "remote" wiring.

By the way, what is "remote"?The answer is "wiring to execute the power supply on/off".When electricity passes through the "remote" terminal, the power amplifier is turned on, and when the power supply to the "remote" terminal is turned off, the power amplifier will drop.The power amplifier is equipped with such a mechanism.

The accessory power supply (ACC power supply) is drawn into the "remote" terminal.The accessory power supply is a power supply that is energized without the engine starting.If you press the engine start button without stepping on the brake, the navigation will turn on (some models have different operation methods).The power supply is the accessory power supply.If you draw it into the "remote" terminal, it will be possible to link the accessories power to turn on/off and the power amplifier on/off.

The problem is where to pull the accessory power supply.By the way, the easiest to understand is "to use the" remote "line from the back of the main unit."The main unit has a "remote line" assuming the connection of the external device, and if you connect the "remote" terminal of the "power amplifier" with a cable, the main unit is on/off.And the on/off of "power amplifier" will be linked.

However, there are some main units where "remote lines" are not set, including the genuine main unit.In that case, the accessory power supply must be branched from the back of the fuse box or the back of the cigar socket.

In addition, it is quite difficult to take out accessory power supply unless you are used to it.Even if you think about safety, it is wise to leave the power wiring of the "power amplifier" to a professional, including "remote" wiring.

This time I will do this.Next time, we will continue explanations on the installation of "power amplifier".looking forward to.