4 ohm amp connected to a 4 ohm dvc

the extra terminals on each side of the sub are there to make connecting multiple wires easier.  

that sub can be wired in series to create an 8 ohm load, or in parallel to create a 2 ohm load. 

the only safe way to connect the sub to that amp would be to wire the coils in series, then bridge it.   this  would be an 8 ohm bridged load, which would give you half of what the amp is rated at to a 4 ohm bridged load.

this sub is not a good match your your amp, you would be better off with either a 4 ohm sub, or a monoblock amp.

when i looked up the sub, every link showed dual voice coil.  if its just a single 4 ohm coil, then just bridge it and you will be fine.

As stated above, you have a bad match and you will need to wire your woofer for an 8-ohm load and bridge the amp.  Or connect one VC to each amplifier channel, which is the same thing.