Single channel amplifiers provide great stability for powering your car subwoofers. The questions begin to arise when you are looking to power two subwoofers with that same amp. There is no cause for concern, however, because these mono amplifiers will be able to handle most configurations you throw at them as they are stable down to one ohm. With that said, when hooking up dual voice coil four ohm subwoofers you may want to prefer one type of wiring over others.
Instructions
1. Cut four lengths of speaker wire long enough to stretch from one positive terminal on a subwoofer to the other positive terminal on the same subwoofer. Strip 1/8 to 1/4 of an inch from each of the eight ends of the lengths.
2. Cut six equal lengths of speaker wire long enough so that two of the lengths end to end reach the subwoofers from the amplifier. Strip 1/8 to 1/4 of an inch from one end of each of the lengths. Strip 1/2 inch from the other ends.
3. Group together three of the six ends from which you have stripped 1/2 inch. Connect the three ends by twisting them together--for better connections solder them--and covering the connection with electrical tape. Group the other three ends with 1/2 inch exposed and connect them in the same way. After these ends are connected make sure your amplifier is disconnected from its power source.
4. Connect one of the 1/4-inch exposed ends from one of the groups of three wires you connected to the positive terminal on the amplifier. You will need to use either a screwdriver or Allen wrench to secure the end in the amplifier. With the other group of three wires, connect one of the 1/4-inch ends to the negative terminal on the amplifier.
5. Connect the two remaining ends connected to the positive terminal on the amplifier to the subwoofers by connecting one to each subwoofer. You will only connect these wires to one of the voice coils. Simply choose one of the positive terminals on each subwoofer and connect the wires.
6. Connect the remaining ends coming from the negative terminal on the amplifier to the subwoofers. Do the same thing as you did with the positive ends, only use the negative terminals on the same voice coil as you used for the positives.
7. Connect the positive terminal of the second voice coils. To do this take one of the four wires you cut in step one and connect one end to the same terminal on the subwoofer as the positive wire coming from the amplifier. Connect the other end of the wire to the positive terminal on the other voice coil of the same subwoofer. Do the same thing with one of the remaining wires on the other subwoofer.
8. Connect the negative terminal of the second voice coils. Take the remaining two wires and connect one to each subwoofer. Connect one end to the same terminal as the negative wire from the amplifier and the other to the negative terminal on the other voice coil of the same subwoofer. After both negative voice coils on each subwoofer are connected, reconnect the power.
Tags: positive terminal, each subwoofer, negative terminal, terminal amplifier, voice coil, voice coils, from amplifier