difference between voice coils

im actually gonna be running it at 1 ohm

It doesn't get any more technical than the fact that you will have more choices of final ohm impedances with any given number of subs...because of the variety of coil configurations.

• First, you determine how many subs you want to use.
• Then, you determine your goal:  SPL or SQ;  competition, neighborhood nuisance or daily driver.
• Choose the subs by brand and voice coil configuration.  Look at continuous power handling capability.  Use wiring help.
• Finally, you pick the amplifier that will let you reach your goals.  RMS power output into the final ohm load should not exceed the sub's ability to handle it.

You've already chosen the brand of subs and the amp and you know what impedance you want to use, because it's obvious your goal is to get maximum power and highest SPL.  As shown to you in the diagrams above, you would choose the subs with the DVC 4 ohm voice coils so that you can come up with a 1 ohm load on your amp.

Whereas...if your goal was to have decibel levels that are easier to listen to for daily driving, and less draw on the power supply of the car, you might choose the SVC 4 ohm models.  But then, you probably wouldn't choose subs capable of 1000 watts if this were the case, either.

While it's true there are some very slight electrical differences when you wire coils in series vs. parallel, this difference is not a reason for consideration when deciding what sub coil configuration to use.  Reason:  the total number of subs would have to change in order to achieve the same final impedance with the various coil configurations available for a given subwoofer.

That Memphis amp will produce 1000 watts into 1 ohm, so your subs will see 500 watts each.