How To Wire a 4 Channel Amp To 6 Speakers

The procedure for connecting the amplifier begins with the power wires. Wiring is the most important element of the car audio system, the sound quality, as well as the volume, depends on it. So, let’s find out how to wire a 4-channel amp to 6 speakers!

External amplifiers are designed to increase both the quality and the volume of the sound broadcast by the radio. The 4-channel bridged amplifier is designed to connect external speakers and a subwoofer for maximum sound power.

Wiring Diagram And How to Extend Speaker Wire

The wiring diagram of a 4-channel amplifier requires reliable power supply, which is supplied from the positive terminal of the battery. The cables are connected through a fuse insert; the rating of the protective element is 5-10% higher than the ratings of the factory fuses in the amplifier case. The cable cross-section is selected according to the table depending on the power consumption. When using a thin cable, overheating and destruction of the insulation occur, leading to a short circuit and ignition of the structure or car.

The negative signal is applied through a connection to the ground bolt welded to the car body panels. A tip is put on the cable, which is then pressed with a nut. On used domestic vehicles, it is recommended to output power from the negative battery terminal, since corrosion on the surface of the bolt increases the contact resistance and degrades the power supply to the equipment.

To automatically turn on the amplifier, a copper cable (with a cross-section of up to 1 mm²) is used, coming from the REM connector of the head unit. After turning on the radio, a control signal is supplied to the amplifier, activating the power circuits. The audio signal is transmitted equipped with an anti-interference shield.

It is allowed to use an active woofer, which is connected to the linear output on the radio. The second linear channel is used for switching an external amplifying module, a Y-type splitter is used for connection. The transmitted signal is automatically divided by the microprocessor control unit into 4 channels (2 rear, 2 front).

There Are Many Ways to Connect A 4 Channel Amplifier To 6 Speakers

• First, remember that connecting a 4-channel amplifier to 6 speakers is not the best idea. But don’t think it’s impossible, you can connect 6 speakers to a 4 channel amplifier.

• You have the option of connecting 6 speakers to a 4 channel amplifier both in series and in parallel.

• Imagine you have 4 ohm speakers. With this assumption, we will find the load on your head unit.

• Connecting 2 4 ohm speakers in parallel will result in a 2-ohm load on the head unit. If you are going to connect 2 speakers for 1 channel, you will have to connect 4 speakers for 2 channels.

• Your 4 speakers are connected to 2 channels and the remaining 2 can be connected to the remaining 2 channels. Currently, connected 6 speakers for 4 channels.

• 2 speakers connected to 2 channels is good for the condition of your amplifier. However, 4 speakers connected to 2 channels will continuously drive 2 ohms into 2 channels when operating at full volume.

• 2 channels will make your stereo system hot due to double load. If you don’t play music very loudly, it may not damage your stereo too much. But if you keep listening, for a very short period of time, to music at high volume, it’s still safe.

Bottom Line

Be sure, but listening at normal or high volume for a short period of time won’t damage your stereo. In summary, now you know how to wire a 4-channel amp to 6 speakers, so just have a nice day!