I am planning on getting 1 12" sub in my car. I already bought the 12" Single Voice Coil Polk MOMO MM12WENC (WENC short for w/ enclosure) with 500watts RMS @ 4ohms! However my friend recommended Rockford Fosgate Punch HE2 Dual Voice Coil 12" sub with 400watts RMS @ 4ohms. He says dual voice coil is like having 2 subs! He works at best buy audio so I thought he would know better, but then I started reading some posts and people saying they are the same or something? So which one should I get? I will be using a Rockford Fosgate 501s 2-channel amp which will put out 500watts RMS bridge @ 4 ohms.
