How To Bridge An Amplifier 7 Steps With Pictures

Bridging an amplifier cuts the resistance load (measured in ohms) in half, which can cause it to overheat. Be sure to check your manual (or the manufacturer’s website) to see if once connected to a speaker, whether or not your amplifier can function at half the ohms it currently uses. Most amplifiers have a small diagram near the channels indicating the terminals you would use to bridge it. If your amplifier does not claim to be able to bridge, don’t try to bridge it. It may already be bridged internally, and you could cause damage to your amplifier. Be aware of the fact that if your amplifier is a stereo amplifier (amplifying both left and right), bridging it would cause it to become a mono amplifier (amplifying from one; either the left or right).

Channel 1 “A” (positive) “B” (negative) Channel 2 “C” (positive) “D” (negative)

The wires coming from the speaker are going to be insulated with a plastic coating. You will need to strip off a small portion of the wire insulation (less than 1 inch) using a pair of wire strippers in order to secure it to the terminals. [1] X Research source What this connection does is it combines the power from the two separate channels, doubling your power output. [2] X Research source

Channel 1 “A” (positive) “B” (negative) Channel 2 “C” (positive) “D” (negative) Channel 3 “E” (positive) “F” (negative) Channel 4 “G” (positive) “H” (negative)

Once the wires are secured, the first speaker is connected to the amplifier.