what ohm do i want?

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Old Nov 25, 2007 | 12:18 PM
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pp18's Avatar
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what ohm do i want?

hi, im goin to buy 2 jl 12w3s but i dont know what i want for ohms. they come in 2, 4, and 8 ohms. im using th 500/1 amp and puttin them under the seats on my 05 screw. what ohms should i get? thanks
 
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Old Nov 25, 2007 | 12:47 PM
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The amp literature should specify what its minimum load is. Most newer high performance amps will drive 2-ohms, perhaps less - it's important to KNOW what the amp is rated for.

The 8-ohm is probably an all-around safe bet, however, lower impedence speakers generally offer better performance, so I suggest that you want the lowest speaker impedence that the amp is rated for. The ideal situation is to exactly match the speaker impedence with the amp's rated or preferred specification for output load.

If you intend to parallel speakers, the degree of difficulty increases. Remember that two speakers of the same impedence which are connected in parallel will present an impedence of 1/2 the speaker impedence to the amp. Ex.- two 8-ohm speakers in parallel means the amp will see a 4-ohm load.
 
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Old Nov 25, 2007 | 10:19 PM
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That amp does the same power pretty much from 1.5-4 ohm, so you would be ok going with any two of them actually.

Personally I would go with two of the 2 ohm ones and wire them for 4 ohm...
 
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Old Nov 26, 2007 | 01:03 PM
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Originally Posted by Bartak1
That amp does the same power pretty much from 1.5-4 ohm, so you would be ok going with any two of them actually.

Personally I would go with two of the 2 ohm ones and wire them for 4 ohm...

I agree
 
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Old Nov 27, 2007 | 01:48 AM
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Get two 4ohm drivers and wire them in parallel to obtain a 2ohm final load the amp will see.

I've never been a fan of wiring speakers in series.

Good luck.
 
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Old Nov 29, 2007 | 11:10 AM
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Like listed above, that amp puts out the same power from 1.5 ohms to 4 ohms. So I guess it really wont matter which ones you get. Im sure Low E will chime in sooner or later with better advice, but I would listen to some of the guys that have more posts... If you know what I mean...
 
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Old Nov 29, 2007 | 12:05 PM
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My cousin is trying to decide whether or not to go with the Dual 4 or dual 2ohm l7's. We got him a kicker kx1500.1 and supposedly kicker amps perform best at 2 ohms? That is what I read so I have no clue. In that cause he should get the dual 4's
 
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Old Nov 29, 2007 | 01:34 PM
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I was thinking that Kicker did power at 1 ohm....

In that case you would want the dual 4s.


If Im thinking wrong and it does its 1500 watts at 2 ohm, then you will want the dual 2 subs.
 
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Old Nov 29, 2007 | 02:46 PM
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And if your ohm stupid like I am, this page can be really helpful.

http://www.crutchfield.com/learningc...rs_wiring.html
 
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Old Nov 29, 2007 | 03:25 PM
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1550@2ohms. So he needs to buy the 2ohm subs and just hook them up so it presents a 2ohm load?
 
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Old Nov 29, 2007 | 04:42 PM
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Originally Posted by Jwool15
1550@2ohms. So he needs to buy the 2ohm subs and just hook them up so it presents a 2ohm load?
Yep!
 
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Old Nov 29, 2007 | 04:49 PM
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Old Nov 29, 2007 | 04:50 PM
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Originally Posted by Jwool15
1550@2ohms. So he needs to buy the 2ohm subs and just hook them up so it presents a 2ohm load?
yup. wire coils in parallel and subs in series, or coils in series subs in parallel. either way works.
 
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Old Dec 3, 2007 | 10:29 PM
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Last edited by anox3; Dec 3, 2007 at 10:34 PM. Reason: made new post
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Old Dec 3, 2007 | 11:10 PM
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Originally Posted by DRJ

There's DRJ with a kick **** diagram again.

Johnny on the Spot

Later guys,
Devildog101
 
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