Sub Impedence

[99sierraman]

Quick question for the electronic gurus. I am slightly confused when it comes to the 3Ohm impedance of the JL subs. Most amps only refer to 2Ohm and 4Ohm impedance output. If I wanted to get a JL sub, what do I need to look for in an amp?

 

[Z71 Kris]

how many subs? 1 or 2?

 

[99sierraman]

My bad, should have specified. Right now I am looking at one JL 8W7:

Linky

 

[PenguinLTZ]

Go with 3 of them, and run 1 ohm mono

 

[99sierraman]

Go with 3 of them, and run 1 ohm mono

If only I had the space and money!

 

[Z71 Kris]

appears to be single voice coil? It says the sub is 500 rms right? sorry not entirely familiar with jl...

 

[Z71 Kris]

Go with 3 of them, and run 1 ohm mono

preferred method, but yeah thats a lil costly...

 

[99sierraman]

appears to be single voice coil? It says the sub is 500 rms right? sorry not entirely familiar with jl...

It is single coil. It is 500W max at 3Ohms, but JL says the optimum RMS is 250W at 3Ohm.

 

[Z71 Kris]

you could use this AudioQue..http://www.audioque.com/AQ750-Amplifier_p_46.html, I just recomended it to Jon(boilerup) for his accord, it looks like about 400 rms at about 3ohm....or you could do this rockford for a little bit morehttp://www.crutchfield.com/p_575R5001/Rockford-Fosgate-Prime-R500-1.html?tp=35834&nvpair=FFBrand|Rockford+Fosgate

Why do you want that jl; anyways? Hard to match amp wise, and can get comparable things for way less money?

edit* those are to big for that sub then...

they reccomend this amp http://www.crutchfield.com/p_136JX2501/JL-Audio-JX250-1.html?tp=35834&nvpair=FFBrand|Rockford+Fosgate&nvpair=FFBrand|JL+Audio..

but again why that sub?

 

[99sierraman]

you could use this AudioQue..http://www.audioque.com/AQ750-Amplifier_p_46.html, I just recomended it to Jon(boilerup) for his accord, it looks like about 400 rms at about 3ohm....or you could do this rockford for a little bit morehttp://www.crutchfield.com/p_575R5001/Rockford-Fosgate-Prime-R500-1.html?tp=35834&nvpair=FFBrand|Rockford+Fosgate

Why do you want that jl; anyways? Hard to match amp wise, and can get comparable things for way less money?

How do you figure out what it outputs at 3Ohms?

As far as why JL. I have friends with all different kinds of setups. The one that impresses me the most as being most versatile is the one that has a JL. It hits all the low notes and is really good for rocking bass riffs. I listen to everything so I want something that hits hard and fast, but that I'm not afraid to bump every once in a while.