How to Bridge an Amplifier
There are many reasons to bridge an amplifier, the main one being to get more power to your speakers and produce a better quality sound. Basically, the process lets you combine the power output of two channels into a single channel. This means that you can get more power to one speaker than you can to two that don't have the bridging in place.
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Instructions
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1
Read all the paperwork that came with your amp. It's important that you understand as much about your amp as possible before trying to bridge it. Often amplifiers come with a diagram for bridging, which makes your job a lot easier.
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2
Figure out how many channels you need to bridge. If you have a four-channel amplifier, then you'll be bridging it into a two-channel. A two-channel amp will be bridged into a single channel. So the bridged amp should have half the channels of the original amp.
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3
Identify the terminals. For each channel, you should see a positive and a negative terminal. So if your amp has two channels, there should be four terminals total. (A four-channel amp will have eight.) Label each with an identifier on a piece of masking tape, something like A: channel 1, positive; B: channel 1, negative; and so on.
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Connect the amplifier to the speaker properly. You should connect the red speaker wire to the terminal labeled A. Then connect the black speaker wire to the terminal labeled D. Then take a short wire and connect terminal B to terminal C to create a bridge between the two channels.
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Test your equipment to make sure it works properly.
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Tips & Warnings
Use extreme caution; doing the process incorrectly can damage your equipment.
If you bought an entire system, make sure your amplifier isn't already bridged; this is a common mistake.
