Some Basic Questions
Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=35914
Printed Date: May 03, 2024 at 4:31 PM
Topic: Some Basic Questions
Posted By: godd dan it
Subject: Some Basic Questions
Date Posted: July 20, 2004 at 10:12 PM
Right now I have an amp and im looking to buy new subs. I want to parallel wire it to the subs. I want to wire it that way I can get the most power out of my amp. My amp can handle a 2 ohm load. But do the subs have to have an impedance of 2 ohms too....so they can handle the amp? Or can they be 4 ohms? Also, the lower the ohms....the better/louder? Thanks
Replies:
Posted By: auex
Date Posted: July 20, 2004 at 10:33 PM
2 4 ohm subs wired parrallel is a 2 ohm load. Lower the ohms=more power, only if your amp can handle a low ohm load. More power doesn't always mean louder/better.
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Posted By: godd dan it
Date Posted: July 21, 2004 at 12:56 AM
Thanks. Im looking to buy either 2 12's or 3 10's.....so if I were to buy 3 10's and wire them up in parallel....what would the ohm load be.....if all 3 subs were 4 ohms?
Posted By: aggie altima
Date Posted: July 21, 2004 at 1:55 AM
Three SVC 4 ohm subs will present a 1.33 ohm load. To get a 2 ohm load, your best bet is to either get two SVC 4 ohm subs or two DVC 2 ohm subs.
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Jon
Don't like rockford subs? Then don't look at my car =)
Posted By: GalpinAudio
Date Posted: July 23, 2004 at 3:58 PM
Is your amp a D Class mono amp or a 2 channel amp? I ask because alot of people misunderstand the rating of an amp when it says it can handle 2 ohms. Most D class amps will handle 2 ohms with no problem at all, but most 2 channel amps will handle 2 ohm STEREO, or 4 ohm MONO. In most cases the amp would need to be a High Current 2 channel amp to be able to handle 2 ohms mono. Just my 2 cents...
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Never Let Those Who Say It Cant Be Done Stand In The Way While You Do It!
Posted By: godd dan it
Date Posted: July 23, 2004 at 9:18 PM
Here are the specs..... 2 x 200 Watts RMS at 4 Ohms
2 x 400 Watts Max at 4 Ohms
1 x 800 Watts Max at 4 Ohms Bridged
2 x 375 Watts at 2 Ohms
Electronic Crossover Network
Bass Boost Circuit
Bridgeable at 4 Ohms
2 Ohm Stereo Stable
Tri-Mode Capable
Gold RCA Inputs
Line Outs For Left &Right Channels
Power &Protection LED Indicators
Soft Turn On/Off
Frequency Response:15 Hz-35 kHz
S/N Ratio:90 dB
So if I wire 2 12" subs in parallel....that would give me a 2 ohm mono load right? Im guessing "stereo" is easier for an amp to handle. Maybe this would explain why my amp would cut out when I wired my subs that I had in parallel.
Posted By: Leif
Date Posted: July 23, 2004 at 11:21 PM
There are odd impedance subs. I once had three MTX 10's at 12 ohms each, paralleled to 4 ohms. They weren't very good subs, but it did work.
JL audio has 6 ohm subs don't they? Three 6'ers in parallell makes 2 ohms.
///Leif
Posted By: jc18750
Date Posted: July 24, 2004 at 5:39 AM
wiring subs to different ohms. hopes this helps. https://www.mycustomcar.com/ohms.html
Posted By: jc18750
Date Posted: July 24, 2004 at 5:42 AM
three 6 ohm subs in parallel makes 1 ohm
Posted By: auex
Date Posted: July 24, 2004 at 10:20 AM
Someone needs to go back and relearn thier algebra. It is 2 ohms.
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: jc18750
Date Posted: July 24, 2004 at 2:25 PM
that's funny, speaking of learning, where did you learn? dumpster diving at car toys? check this with your digital multimeter.. 3 single voice coil subs wired in parallel is 2 ohms, correct, good for you. however, as i pointed out before, 3 DVC 6 ohm subs in parallel is 1 ohm, ass. i finished calc during my senior year at high school up at a community college. thanks for your input though.
Posted By: auex
Date Posted: July 24, 2004 at 2:58 PM
jc18750 wrote:
three 6 ohm subs in parallel makes 1 ohm
Where the hell does it say dvc? I am sorry go back and learn your english. ------------- Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: jc18750
Date Posted: July 24, 2004 at 4:21 PM
you should be sorry, he doesn't specify SVC either. and i need english?
Posted By: GalpinAudio
Date Posted: July 24, 2004 at 8:28 PM
Y'all are arguing bout 3 subs being 1 ohm or 2 ohms but if y'all read Godd Dan It's post in response to mine you'd see that it dont matter anyway. The amp he has is only rated at 4 ohms mono, 2 ohm stereo. Here are the relavant specs again..... 2 x 200 Watts RMS at 4 Ohms
2 x 400 Watts Max at 4 Ohms
1 x 800 Watts Max at 4 Ohms Bridged
2 x 375 Watts at 2 Ohms
So y'all stop arguing and being childish and just help him figure out what he wants to run to equal a 4 ohm load. ------------- Never Let Those Who Say It Cant Be Done Stand In The Way While You Do It!
Posted By: Ravendarat
Date Posted: July 25, 2004 at 12:42 AM
I gotta say, JC18750, that before you start thowing that kinda attitude at established members mabye you should be around here a little longer. On top of that it seemed pretty clear to me that he was just making a joke about the algerbra thing. In the future this is why eveything needs to be explained completly. With that said GalpinAudio is right, if you read the post you would see that you need to take a different aproach to this question. If he had 3 DUAL VOICE coil subs with each coil being 6 ohms than you could wire each sub in series than wire all three subs in parellel and get a 4 ohm load on that amp. Now with that being said as well, that amp is only 800 watts max at 4 ohms bridge so I have to wonder what brand of amp it is. I didnt see it posted but mabye I just missed it. Now if this is the case and thats all the amp produces, I would tend to think that its not gonna produce enough power to run 3 subs, not well at least. I would probally be looking at two dual 4 ohm subs and wire series parellel to get a 4 ohm load and go from there.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: jc18750
Date Posted: July 25, 2004 at 1:33 AM
how well it would run 3 subs depends on the type of subs your going to get. if you want a little more bass at higher volume, go with two on that amp. personally i would go with two, and in my car, i did. if you follow the link that i had left earlier about wiring subs to different ohms, it might help him decide what he wants to do. it took me a couple of minutes to put it together and post it on my site, so i thought it might be worth a minute to look at. it'll show you how to wire what to what in order to get the ohms that you want. as for the established member, every time i try to post something, where ever it is, he writes saying that i don't know what i'm talking about. it's pissing me off, but i appologize to everyone else for my current attitude. it will stay out of the forum.
Posted By: Ravendarat
Date Posted: July 25, 2004 at 9:41 AM
Once again I guess I implyed knowleadge. I was under the impression we were talking about the W6 being they are the only JL subs I know of with dual 6 ohm coils, and if thats the case, and thats what we were talking about, then that is definatly not enough power for them.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
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