I am so lost. to this day i really don't know what the difference is between a 4ohm and a 2ohm sub.

Could someone help me understand what the difference is.

Thanks.

 

www.bcae1.com

A 4ohm sub has a coil that is... 4ohms impedance.

A 2ohm sub has a coil that is... 2ohms impedance.

 

so how do you know which kind to get...?

 

Referring back to www.bcae1.com, you need to get your basics down or hand this job over to a pro.

You base your ohm spec off the amp's load ratings suitable for it.

 

2 schools of thought on this one. 1 is if you have the amp first. Then you buy subs to match your amp. The other is buying your subs of choice first, then finding an amp to match. Personally, I like the 1st choice, because I'm rather partial to my Sundown amp. Then again, I can run it down to around .35 ohms daily without much worry so it's not a big deal what subs I get.

I disagree with you here, about handing it off to a pro. There are plenty of people that can and will help him here. If OP's willing to listen, we can teach him all he needs to know. Then there's 1 less idiot paying retail for car audio.

 

I share your sentiment against retail stores. A pro need not be a retail shop though. What I'm conveying here is that you need to know your basics before you move forward here. Hence my push for the bcae website.