4 Ohm Wiring Diagram. It includes guidelines and diagrams for different varieties of wiring methods along with other products like lights home windows etc. If you are soldering them you do not want a cold solder joint.
6 4 ohm speaker wiring diagram. Svc subwoofer wiring diagram here you can see an 80watt 4 ohm subwoofer is connected to an amplifier rated 80watt 4 ohm. Wiring any skar audio subwoofer or amplifier below 1 ohm will automatically void your warranty on the product.
A dual voice coil subwoofer or dvc sub has four.
Then wire the two subs to your amp in parallel like this diagram ignoring the marked impedance values. Connect the negative terminal of the subwoofer to the negative terminal of the amplifier. It is a traditional method of wiring that works very well. They show a typical single channel wiring scheme.