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How many subs should I run?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=54503
Printed Date: April 29, 2024 at 1:30 AM


Topic: How many subs should I run?

Posted By: possessed007
Subject: How many subs should I run?
Date Posted: April 23, 2005 at 9:28 PM

...to get the most power to them....

I have a PPI PCX-1500 

RMS power at 2 Ohms 1000W X 1

RMS power at 4 Ohms 500W X 1

I have 3 JL AUDIO 10W6v2......I would liek to know if I use 2 of them how much power would each subwoofer receive? and if I use all 3 of them how much power would each receive then?

thank you




Replies:

Posted By: jeffchilcott
Date Posted: April 23, 2005 at 9:40 PM
need to know if the jl subs are d4 or d2 models    that will tell us what ohm the coils are on each

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place




Posted By: possessed007
Date Posted: April 23, 2005 at 10:07 PM

jeffchilcott wrote:

need to know if the jl subs are d4 or d2 models    that will tell us what ohm the coils are on each

10W6v2-D4

Whats the best setup 2 or 3 and how should i hook them up? They will be in a false floor.





Posted By: LTHLQUICKSILVER
Date Posted: April 23, 2005 at 11:12 PM
If that PPI amp is 1 OHM stable, I would use two and wire them down to one ohm.  Then you should pull a little more out of that amp and give the w6's the power that they need.  If you had it at four ohms, you would be underpowering the two of them.  As for the third, I wouldn't use it at all, regardless of how you wire it up.

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Muscle Cars Don't Just Look Good, But They Can Sound Good Too...
1971 Chevelle SS




Posted By: possessed007
Date Posted: April 23, 2005 at 11:17 PM

LTHLQUICKSILVER wrote:

If that PPI amp is 1 OHM stable, I would use two and wire them down to one ohm.  Then you should pull a little more out of that amp and give the w6's the power that they need.  If you had it at four ohms, you would be underpowering the two of them.  As for the third, I wouldn't use it at all, regardless of how you wire it up.

If I use 2 of them it wont run the amp at 2 Ohms? that would be enough power 1000w? Can I do that?.......I might just go with Alpine MRD-M500 instead one for each subwoofer but I didnt want to change amps.....





Posted By: jeffchilcott
Date Posted: April 24, 2005 at 12:27 AM
really there is no best way to wire these.   if you wire the subs together all 3   in parrallel, with 8 ohm per sub and a 2.66 ohm load on the amp, but you would only get 700-800 totaal off the amp, this would underpower the subs.     if you wire each sub all to 2 ohm each then parrallel then you get .66    way below the amps recomendations.      with 2 subs you can only get a 1 or a 4 ohm load,   neither which are ideal for the subs/ amp.       Either look into another amp, or purchase another one like you have to run one per sub.

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place




Posted By: audiobass10
Date Posted: April 24, 2005 at 12:36 AM

Running the amp at 2 ohms will be fine. Nominal impdedance really means nothing.



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Dave

Pioneer Premier DEH-P660
15" Kicker CVR
Profile AP1000M
It's Loud




Posted By: jeffchilcott
Date Posted: April 24, 2005 at 9:15 AM
except he cant achieve a 2 ohm load,    only a 2.66 with all the subs, which would underpower them quite a bit

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place




Posted By: possessed007
Date Posted: April 24, 2005 at 12:01 PM

jeffchilcott wrote:

really there is no best way to wire these.   if you wire the subs together all 3   in parrallel, with 8 ohm per sub and a 2.66 ohm load on the amp, but you would only get 700-800 totaal off the amp, this would underpower the subs.     if you wire each sub all to 2 ohm each then parrallel then you get .66    way below the amps recomendations.      with 2 subs you can only get a 1 or a 4 ohm load,   neither which are ideal for the subs/ amp.       Either look into another amp, or purchase another one like you have to run one per sub.

From the looks of it I will have to change something.....i will look into it and get back to u guys......

One more thing if I use D2 how many i got to use?





Posted By: jeffchilcott
Date Posted: April 24, 2005 at 12:49 PM
you can run 2 d2 subs perfectly,   wire the 2 coild in series to get 4 ohm per sub then wire the 2 sub in parrallel to get a 2 ohm load,    this would be perfect for your amp and subs.    If you wired all 3 subs like this you would get a 1.33 ohm load, below the 2 ohm rating..I can not recommend doing this unless you called PPI and checked to see if the amp could handle it

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place




Posted By: possessed007
Date Posted: April 24, 2005 at 1:18 PM

jeffchilcott wrote:

you can run 2 d2 subs perfectly,   wire the 2 coild in series to get 4 ohm per sub then wire the 2 sub in parrallel to get a 2 ohm load,    this would be perfect for your amp and subs.    If you wired all 3 subs like this you would get a 1.33 ohm load, below the 2 ohm rating..I can not recommend doing this unless you called PPI and checked to see if the amp could handle it

Welll I think I will change the amps...I have 2 PCX-2200 I can purchase one more and run one for each sub which will give me 1 x 800w at 2Ohms each amp.....of course 800w is a bit too much so I would have to lower the gain but it will run the amp cooler.....





Posted By: possessed007
Date Posted: April 24, 2005 at 11:59 PM

If I ran a PPI PCX-2400 Bridged at 4 Ohms 1600w......can I run it with 3 JL Audio 10W6v2-D4............?






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