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76 Posts

Thanks

Corey

BTW, the Subs are JL 12w3's and the amp is a JL 500/1.

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Joined

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76 Posts

Thanks

Corey

BTW, the Subs are JL 12w3's and the amp is a JL 500/1.

Joined

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76 Posts

Thanks

Corey

Are they dual voice coil subs? If they are you're probably not hooking them up correctly.//00 Silver GTS said:The thing that I don't understand is that there are two post at each + and -, so should there be a wire at each post of the + and -?

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76 Posts

This is the way I understood the diagram JL sent with the subs.

Thanks for the help.

Corey

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76 Posts

Anybody no what could be wrong? Do I have the subs wired up right?

Thanks

Corey

Thanks

Corey

Ok. Im putting my degree to work here. If your subs are 4 ohms for each coil, putting them in this arrangement will give you a total impedance of 1 ohm. That is good if your amplifier can handle it. I see that you have a JL 500/1. Im pretty sure it can handle this load. Its rated @ 1.5 ohms min but given the impedances in the wires and the terminals, you should be fine. IF you got the D6 W3's you are money. I hope this helps.

Blazin-sc, do you want to expalin what "degree" you are using here? Is it like an ART degree or something??blazin-sc said:Ok. Im putting my degree to work here.

The diagram that //00 Silver GTS put up there is 100% correct. Each sub is 4-ohm per coil. With each coil in series, that's making the sub 8-ohms. Then with both 8-ohm subs in parallel, that brings the total down to 4-ohms.

4+4=8 - series equation

1/8+1/8=1/4 - parallel equation

The JL amps put out the same power no matter what impedance you are running as long as it is between 1.5 and 4-ohms. The arrangement that //00 Silver GTS is running is correct.

Blazin-sc, you shouldn't say anything unless you know what you are talking about. This guy is looking for some help and you tell him to wire his subs to 1-ohm??? WTF are you smoking?

//00 Silver GTS, do you have a voltmeter? Also, do you have access to a portable CD player to plug directly into your amp?

Curt

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76 Posts

I have a BS in EE. You probably dont even have a HS diploma. He was complaining that he wasnt getting the power that he wanted. I dont know what eqns you had but something just isnt right. 4 - 4 ohm loads in parallel is 1 ohm. That amp that he has can handle 1 ohm. I see it happen all the time. That will give him the maximum power and give him the most bang for his buck. That is why he bought that expensive ass amplifier. He could have done it the way that he had it but that is still a 4 ohm load. Lowering the impedance to 1 ohm will impedance match his load w/ his source impedance. I didnt mean to say that his diagram was wrong. But, I just wanted to let him know what other options he had in case he didnt want to use the 500/1. AIM me if you got beef: BlazzzinSC

The parallel impedance eqn is the following:SQ GT-S said:

Blazin-sc, do you want to expalin what "degree" you are using here? Is it like an ART degree or something??

The diagram that //00 Silver GTS put up there is 100% correct. Each sub is 4-ohm per coil. With each coil in series, that's making the sub 8-ohms. Then with both 8-ohm subs in parallel, that brings the total down to 4-ohms.

4+4=8 - series equation

1/8+1/8=1/4 - parallel equation

The JL amps put out the same power no matter what impedance you are running as long as it is between 1.5 and 4-ohms. The arrangement that //00 Silver GTS is running is correct.

Blazin-sc, you shouldn't say anything unless you know what you are talking about. This guy is looking for some help and you tell him to wire his subs to 1-ohm??? WTF are you smoking?

//00 Silver GTS, do you have a voltmeter? Also, do you have access to a portable CD player to plug directly into your amp?

Curt

1/Rf = 1/R1 + 1/R2 .... you need to invert that eqn you had.

I have a high school diploma, thank you. I'm am going for a BS in Mechanical Engineering and a BS in Materials Science. I am in my 3rd year now, so I've taken plenty of electronics classes. The fact that you are saying you are an EE and can't understand Ohm's Law makes me wonder.blazin-sc said:I have a BS in EE. You probably dont even have a HS diploma.

I never questioned that. I just said he shouldn't do that.blazin-sc said:I dont know what eqns you had but something just isnt right. 4 - 4 ohm loads in parallel is 1 ohm.

Dude, you just kicked yourself in the nuts on that one. I posted the equation that:blazin-sc said:

The parallel impedance eqn is the following:

1/Rf = 1/R1 + 1/R2 .... you need to invert that eqn you had.

1/8 + 1/8 = 1/4, which is the exact same as your equation 1/R1 + 1/R2 = 1/Rf. Are you actually reading these posts??

According to JL's website, that amp should be run between 1.5-4-ohms. Sure, it might be able to handle 1-ohm, but why? The amp puts out the same wattage at 4-ohms as it would at 1.5-ohms. I've called JL Audio (since I'm on their competition team), and they do not recommend 1-ohm on a JL amplifier. Call and ask if you want.blazin-sc said:That amp that he has can handle 1 ohm.

Dude, I would love to continue going on about it, but I won't. I think you just need to re-read my first post, then read yours. Maybe you were paying attention and it was a simple mistake. Whatever. I don't want to turn this post into a "mine is bigger than yours" thing. If you want to, go ahead.

Curt

BTW, I don't have beef with you. I just have beef with people that post bad information for others.

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