How to Wire Multiple Speakers to One Crossover
- 1). Locate the output terminals of the crossover. There should be two terminals on the low side and two on the high side. If the head unit and crossover have a minimum impedance of 4-ohms, then the speakers that will be connected to the low or high side of the crossover must have a combined impedance of 4-ohms or more.
- 2). Check the impedance of the tweeter speakers. If these speakers have an impedance of 4-ohms each, then the only way to connect these speakers to the high side would be to connect the two speakers in series. Connecting them in series would cause their impedances to add to one another, yielding 8-ohms. If connected in parallel, the impedance would split in half and yield 2-ohms, which would exceed the ability of the head unit and crossover.
- 3). Cut three single pieces of wire. Strip 1/2-inch of insulation off of the ends of each wire using the wire strippers. Connect one end of the first wire to the positive terminal of the high side of the crossover. Connect the other end of this wire to the positive terminal of the first tweeter speaker. Then connect a second wire between the negative terminal of the first tweeter and the positive terminal of the second tweeter.
- 4). Connect the last wire between the negative terminal of the second tweeter and the negative teminal of the high side of the crossover. These two tweeters are now connected in series to the high side of the crossover.
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