Difference between SVC & DVC in a sub?

Green '01

Could someone please explain the difference between a single voice coil and a dual voice coil in a subwoofer, as far as sound production and performance? I'm looking into getting four db651 speakers and either a db1040 sub or a db1040DVC sub for my pontoon boat but don't know how one sub might sound, as compared to the other. I haven't purchased a head unit or any amps yet, though I been thinking about the Polk PA D5000.5 amp for all five speakers.
Thanks in advance for any help.

Green '01

Please forgive me if I seem ignorant on the subject, but I sort of am.
Ok, found some sort of an answer in this thread: http://www.polkaudio.com/forums/showthread.php?70895-Single-Voice-Coil-vs.-Dual-Voice-Coil
If I understand it correctly, seems the benefit to a DVC is more than one way to wire it up for different desired ohm values. So if I have an amp with a 4 ohm sub output, the simplest thing for me to do is get a 4 ohm sub with a single voice coil, right?

tonyb

Hold the phone ....amps don't have subwoofer outputs, receivers and processors do, which do you have ?

OOPS....that's a car audio post

pitdogg2

umm car audio Tony....

Green '01

Was looking at the Polk PA D5000.5 which has 5 channels:

Amplifier Specs
Power Specs 100W x 4, 400W x 1 RMS @ 2 ohms; 70W x 4, 200W x 1 RMS @ 4 ohms; 200W x 2 RMS bridged @ 4 ohms; 500W x 1 RMS @ 1 ohm (sub)