Eclipse SW8102 impedence?

[DaPutster 10+ year member]

I picked up a couple of Eclipse SW8102 subs in the last week, but I'm stumped about the impedence listed in the manual. Everything I've seen online for the subs, including the subwoofer catalog (link to a copy) says that the sub is a dual 4-ohm sub. The problem is that the instruction manual included in the box says that they are dual 3.1-ohm voice coils. My amps (1 per sub) are only 4-ohm stable when bridged (2-ohm stereo), and I don't want to damage it if I run these the wrong way. Any advice (besides getting different amplifiers) would be appreciated.

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[azbass 5,000+ posts]

they are dual 4's

 

[DaPutster 10+ year member]

Thanks for the quick reply.

 

[damanTO81 10+ year member]

if the subs dual coils it 4 ohm if its single coil its 3.1 look at the manual u linked they have it in there sw8102dvc 4ohm+4ohm and sw8102.4 4ohm then on the chart all the subs with dvc are 4 ohm and the ones with .4 are listed as 3.1 ohm