There's nothing like a four-subwoofer system if you want to bring on the bass in your car. But there are several ways to connect four subs to one amp, depending on what kind of amplifier you have. We'll take a look at connect four subs to three different types of car amplifiers.
Instructions
Connecting Four Subs to a Mono Amp
1. Strip the insulation from the ends of four pieces of speaker wire so that 3/8 to 1/2-inch of bare wire is visible.
2. Find the speaker output terminals on your mono amplifier. They'll be marked SPEAKER, plus "+" (positive) and "-" (negative). Connect the first piece of speaker wire between the speaker output terminals and the terminals of the subwoofer. Be sure the "+" terminal on the subwoofer is connected to the "+" terminal of the amp. The "-" terminal of the subwoofer is connected to the "-" terminal of the amplifier.
3. With the second piece of wire, connect the "+" terminal of the first subwoofer to the "+" terminal of the second subwoofer. The "-" terminal of the first sub should be connected to the "-" terminal of the second sub. Continue, connecting the third sub to the second sub and the fourth sub to the third sub. This is wiring in series, sometimes known as "daisy chaining." Since this lowers the impedance of the speakers, only do this if your subs are 8-ohms, and the amp is 1-ohm stable.
Connecting Four Subs to a 2-channel Amp
4. Strip the insulation from the ends of four pieces of speaker wire so that 3/8 to 1/2-inch of bare wire is visible.
5. Find the speaker output terminals on your 2-channel amplifier. There will be two of these, marked SPEAKER, R and L, plus "+" (positive) and "-" (negative). Connect the first piece of speaker wire between the R speaker output terminals and the terminals of the subwoofer. Be sure the "+" terminal on the subwoofer is connected to the "+" terminal of the amp, and the "-" terminal of the subwoofer is connected to the "-" terminal of the amplifier.
6. With the second piece of wire, connect the "+" terminal of the first subwoofer to the "+" terminal of the second subwoofer, and the "-" terminal of the first sub to the "-" terminal of the second sub. Repeat this process with the L-set of speaker terminals, connecting two subwoofers to it in series. This system will work well with any 2-channel amplifier and 4-ohm subwoofers.
Connecting Four Subs to a 4-channel Amp
7. Strip the insulation from the ends of four pieces of speaker wire so that 3/8 to 1/2-inch of bare wire is visible.
8. Find the speaker output terminals on your 4-channel amplifier. There will be four of these, marked SPEAKER FRONT, R and L, plus "+" (positive) and "-" (negative), and another set marked SPEAKER REAR, R and L, plus "+" (positive) and "-" (negative). Connect the first piece of speaker wire between the R speaker output terminals and the terminals of the subwoofer. Be sure the "+" terminal on the subwoofer is connected to the "+" terminal of the amp, and the "-" terminal of the subwoofer is connected to the "-" terminal of the amplifier.
9. Repeat the process so that one subwoofer is connected to every speaker terminal output.
Tags: connected terminal, subwoofer connected, output terminals, speaker output, speaker output terminals, speaker wire
