Three 10s
10-25-2005, 04:54 PM
#1
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Three 10s
I want to run three 10s at a 2 ohm load. My question is what 10s to buy.. I have two JL W3V2s with dual 4 ohm voice coils. I need to buy one more and i was told to get a dual 2 ohm JL W3 sub... then I can run all three at a 2 ohm load.
Is that true??
Is that true??
10-25-2005, 09:54 PM
#3
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not that i know it all but see this, may help:
http://www.crutchfieldadvisor.com/le...fers_dual.html
http://www.crutchfieldadvisor.com/le...fers_dual.html
10-26-2005, 02:40 AM
#4
DO NOT MIX OHM LOADS.
First are you going to be using the same amp to power the 3 10;s that are power the 2 10s. IF so dont do it. You will notice a 1.5 to 2 db differ.
If u wire 3 dual 4 ohm woofers in par. you get a .67ohm load or series it for a 2.67 ohm load.
First are you going to be using the same amp to power the 3 10;s that are power the 2 10s. IF so dont do it. You will notice a 1.5 to 2 db differ.
If u wire 3 dual 4 ohm woofers in par. you get a .67ohm load or series it for a 2.67 ohm load.
10-26-2005, 09:26 AM
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I don't have any subs hooked up right now... I am waiting on the amp
I will be running all of the them off of a JL Audio 500/1... so yes, one amp
Is that not a good idea?
I will be running all of the them off of a JL Audio 500/1... so yes, one amp
Is that not a good idea?
10-26-2005, 11:02 AM
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Originally Posted by CJams
Not really! Why do you need 3? 2 just isn't enough?
I am running through the equations here and im coming up with 2.67 running three DVC 4ohm subs. I haven't really seen anything saying not to run two 4ohm and one 2 ohm... and that gets me a little closer to 2 ohm at 2.4 (if my math is right)... Why is this not a good idea.
at 4 ohm... this is what im planning... let me know if its wrong or any other ideas anyone may have
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10-26-2005, 11:47 AM
#10
Originally Posted by dnd2984
DO NOT MIX OHM LOADS.
First are you going to be using the same amp to power the 3 10;s that are power the 2 10s. IF so dont do it. You will notice a 1.5 to 2 db differ.
First are you going to be using the same amp to power the 3 10;s that are power the 2 10s. IF so dont do it. You will notice a 1.5 to 2 db differ.
Originally Posted by dnd2984
If u wire 3 dual 4 ohm woofers in par. you get a .67ohm load or series it for a 2.67 ohm load.
10-26-2005, 12:15 PM
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Originally Posted by DroppedTLnR6
I am running through the equations here and im coming up with 2.67 running three DVC 4ohm subs. I haven't really seen anything saying not to run two 4ohm and one 2 ohm... and that gets me a little closer to 2 ohm at 2.4 (if my math is right)
Two DVC 4ohm subs wired in series gets me to 8 ohms each.... the other 2 ohm wired in series... gets me to 4 ohms.
Wire them together in parrallel gets me to 2ohm exactly...
Anyone know if this will work... of not... why not??
10-26-2005, 12:52 PM
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Originally Posted by JoeC1982
Don't mix ohm loads. Get another D4.
10-26-2005, 01:43 PM
#16
Originally Posted by dnd2984
If u are gettin a JL 500/1 why does it matter. It produces the same power bewteen 4 to 1.5ohm. So get another dual 4ohm if you have the box. Later you can always add more power.
10-26-2005, 02:32 PM
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The ohm load is exactly 2 ohms with two DVC 4ohms and one 2 ohm sub.
Where are you getting 1.33??
if you run the two 4ohm DVCs is series they are producing 8 ohms a sub... not 4
Where are you getting 1.33??
if you run the two 4ohm DVCs is series they are producing 8 ohms a sub... not 4
10-26-2005, 03:06 PM
#20
Originally Posted by DroppedTLnR6
The ohm load is exactly 2 ohms with two DVC 4ohms and one 2 ohm sub.
Where are you getting 1.33??
if you run the two 4ohm DVCs is series they are producing 8 ohms a sub... not 4
Where are you getting 1.33??
if you run the two 4ohm DVCs is series they are producing 8 ohms a sub... not 4
2.6667 if you're putting 4ohms in series and a 4ohm parallel.
Your diagram doesn't show anything in series! Nor does it have a 2ohm speaker.
10-26-2005, 04:05 PM
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Originally Posted by CJams
Your diagram!!!!!!!!!!!!!!!!!!!!!!
2.6667 if you're putting 4ohms in series and a 4ohm parallel.
Your diagram doesn't show anything in series! Nor does it have a 2ohm speaker.
2.6667 if you're putting 4ohms in series and a 4ohm parallel.
Your diagram doesn't show anything in series! Nor does it have a 2ohm speaker.
Each speaker is a DUAL VOICE COIL. So each coil is 4ohms and when you run then IN SERIES it comes out to 8ohms ... like so:
This is a Dual-4 Ohm Subwoofer in Series at 8 Ohms
NOW... you run each sub like that at 8 ohms... then run the whole thing parrallel and it comes out to 2.66667.... THIS IS A THREE 4OHM SCENARIO
Here is the full diagram:
NOW... if you change one of then to a 2ohm sub and run it in series... that makes is 4 ohms.... following me?
So here is the math
1
___________ = 2 ohms!
1/8 +1/8 +1/4
10-26-2005, 04:40 PM
#23
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Originally Posted by CJams
Yet a different diagram......
should have posted that one in the first place.
anyway, looks like you answered it yourself!
Good job
should have posted that one in the first place.
anyway, looks like you answered it yourself!
Good job
10-26-2005, 04:51 PM
#24
Originally Posted by CJams
Yet a different diagram......
should have posted that one in the first place.
should have posted that one in the first place.
Anyway, does anyone have a link to explain why mixed ohm loads are a bad idea and not just rumor?
10-26-2005, 11:20 PM
#26
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Originally Posted by DroppedTLnR6
I am leaning towards that but I just want to know why... anyone have any technical reason that this won't work. The only think that erks me is that I haven't see anything on the JL (or any other site) that says that this will work... but there also isn't anything that says it won't work.
If there is a difference in impedance, then the sub with a higher impedance will get less power. The overall affect would be one sub being louder the other.
Think of it as this way:
You have a 10" (diameter) water hose. It gets split into 2 different size hose. 2" and 3". The 3" (less restriction) will have more capacity to flow water than the 2". In a specific time frame, the 3" will have more volume than 2".
You dont want one sub getting more power than the other., unless you dont care about how the bass will sound like.
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