How To Bridge Car Amplifier

If you want to have an excellent sound system in your car, then you need to learn how to bridge a car amplifier.  Bridging a car amplifier is not very difficult, but you definitely need to know what you are doing.  The following guide will teach you how to bridge a car amplifier and get an excellent sound system for your car.

To bridge a car amplifier, you will need:

  • Your car
  • Tape and markers (for labeling)
  1. If you have the owner's manual that came with your car amplifier, then you may want to check it.  Sometimes the manual will state whether or not a particular amplifier can be bridged.  If it cannot be bridged, do not try to bridge it.
  2. Determine how many speakers your amplifier is intended to be run on.  You will need to cut the number of speakers in half in order to properly bridge it. 
  3. To make the process of bridging your car amplifier easier, you should label the terminals at the back of your speakers.  For example, if you have a two speaker amplifier, it will have four terminals.  Label the terminals as follows: channel 1 positive as "A", channel 1 negative as "B", channel 2 positive as "C", channel 2 negative as "D".
  4. Next, connect the red wire to the terminal you have marked "A".
  5. Then, connect the black wire to the terminal you have marked "D".
  6. Your car amplifier should now be bridged.  Test out the speakers and see how they sound.
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