Are Dual 4 Ohm Subs considered 8 or 4

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=48440
Printed Date: July 15, 2025 at 11:16 PM

Topic: Are Dual 4 Ohm Subs considered 8 or 4

Posted By: Fat4free
Subject: Are Dual 4 Ohm Subs considered 8 or 4
Date Posted: January 24, 2005 at 1:03 AM

im just a bit confused about the terminology here. I got 2x Kicker 4 ohm Dual Voice coil subs are they considered 4 ohm or 8 ohm subs

Replies:

Posted By: stevdart
Date Posted: January 24, 2005 at 1:08 AM

They're considered dual 4 ohm subs. Each one can be wired either to 8 ohms or to 2 ohms. See https://www.rockfordfosgate.com/rftech/wiringwizard.asp?WoofQty=2+woofers&WoofImp=Dual+Voice+Coil+-+4+ohms+x+2&image.x=21&image.y=11

Posted By: Fat4free
Date Posted: January 24, 2005 at 1:10 AM

so can some subs not be "dual"?

Posted By: stevdart
Date Posted: January 24, 2005 at 1:19 AM

SVC (single voice coil) subs are the original type of subwoofer...just like all speakers are made. The dual-type voice coil on subwoofers is a fairly recent development that helps buyers match sub + amps + power better as they make wiring to certain impedances a little more flexible. You'll find SVC subs, and then you'll find DVC subs with 2, 3, 4, 6 and 8 ohms per coil. The majority are dual 4 ohm. Here are some past posts on the subject: https://www.the12volt.com/installbay/search.asp?KW=coil&SM=1&SI=TC&FM=2&OB=1&Submit=Start+Search