Hey guys im advancing close to buying these Rockfords Here, I dont quite understand what 2& 4 Ohms means and what amp I should use for them. Can someone explain to me how it works please?

 

ohms is the electrical measurement for resistance.

tell me what your getting (rockford i understand, but what model subwoofer, how many, and what amplifier?)

 

I was going to get 2 Rockford T112D2 Sub. not sure what ampa I should get, I was told by a few people that its okay to mix brands like getting an alpine amp to puch the rockfors but im not sure.

 

your going to want ~1200 watts of continuous power @ a 2 ohm load.

http://www.rockfordfosgate.com/produ...n_US&p_status=

that will give you more than 1200, (1500 to be exact) but with those top of line rockford subs, they'll take it with no worries

 

This should help:

http://www.edesignaudio.com/edv2/ele...gns_wiring.php

 

The lower the resistance (ohms) on a speaker, the more power (watts) the amp can push through. However, not all amps can handle the extra power a lack of resistance will provide and will fry. That's why I love Rockford, they are built to handle anything.

If you have two 4ohm subs, wired parallel = 2 ohms each.

If you have two 2ohm subs, wired parrallel = 1 ohm each and rediculous power going through.

It gets more complicated when you add more subs, but you can see the relation. Phoenix Gold use to have something like a 50 watt rated amp that could handle about a .25 ohm/speaker and push about 400 watts through each one. I'm sure you could have cooked a very nice steak on the heat sinks as well ;-)