Subwoofer Wiring Diagram
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=21890
Printed Date: May 31, 2024 at 9:22 AM
Topic: Subwoofer Wiring Diagram
Posted By: EzekialPhoenix
Subject: Subwoofer Wiring Diagram
Date Posted: November 24, 2003 at 3:16 PM
Anybody know where I can find a wiring diagram for wiring two 4 ohm DVC subs to 1 ohm?
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I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Replies:
Posted By: forbidden
Date Posted: November 24, 2003 at 3:33 PM
Simple, take all positive leads and hook them together to the positive lead on the amp, repeat for the negatives. What you are doing is basically creating a ladder. Take a look at the parallel and series area in the car audio section of this site, if I remember right it is detailed there (it just shows an extra number of speakers). ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: EzekialPhoenix
Date Posted: November 24, 2003 at 3:46 PM
The diagram shows SVC subs. I am assuming I must connect the positive terminals on both voice coils of each sub as well as the negative terminals on both voice coils of each sub and then do the same thing for the otehr sub and connect the subs with one positive wire and one negative wire to one voice coil, then out to the amp. Basically, hook all the positives together and hook all the negatives together, then out to the amp? ------------- I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: bberman1
Date Posted: November 24, 2003 at 3:46 PM
Posted By: forbidden
Date Posted: November 24, 2003 at 3:50 PM
Exactly dude.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: EzekialPhoenix
Date Posted: November 24, 2003 at 3:53 PM
got it. Thanks for da help.
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I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: bfog99
Date Posted: November 24, 2003 at 5:14 PM
Posted By: noob
Date Posted: November 25, 2003 at 1:12 AM
now just out of curiosity would that load be harmful to either the amp or the subs????? also....call me stupid but.......physically.....how would i wire this???? im confused on how i would actually do it???? can anyone just make a rought drawing or some thing???? just the part where the one positive wire splits into two wires.....any help is appreciated 
Posted By: EzekialPhoenix
Date Posted: November 25, 2003 at 10:21 AM
Wiring your subs like this will not be harmful so long as the amp can handle a 1 ohm load. Many amps cannot, and it is important that you check that before you wire your subs like this. Also, if you wire your subs like this, but they are not dual 4 ohm subs, you will not be wiring them at 1 ohm. If they are single voice coil subs, they will be wired at 2ohms. If they are dual 2 ohm voice coil subs, they will be wired at .5 ohm. Also, the diagram is a little basic, so it doesn't do a good job of illustrating exactly how to hook up the wires. The diagram makes it look like you need to "tap into" the wires where the wires split. This is not how it looks in a real application. Imagine each wire as being separate and look at the diagram that way. That should give you a better perspective on what to do. On a final note, always remember that the load the amp sees, is the load that subs are wired to. This is important so, for example, you don't bridge an amp at 2 ohms (which most are not stable). If your subs are wired at 2 ohms, you're amp will see a 2 ohm load. ------------- I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: bberman1
Date Posted: November 25, 2003 at 11:01 AM
Sounds like you did your homework 
Posted By: noob
Date Posted: November 25, 2003 at 11:58 PM
alright well another question for you then.......i just got my HE2......with a 1500 wat amp......the HE2 is rated 800 watts max, and is 4 ohms......what would be the best way to wire this sub to my amp without frying my sub or amp....... ok lets put it like this.....what would be the best way to wire it period?
Posted By: EzekialPhoenix
Date Posted: November 26, 2003 at 8:19 AM
First of all. Always remember that when you see the word MAX written on a sub or an amp, that is not a correct number to go by. Your He2 sub can handle 100-400 watts rms. Rms is what you are looking for. Rms is the amount of power a sub can handle continuously and it is also the amount of power an amp can put out continuously, depending on what voltage that rms rating was measured. But, to answer your question, the He2 is a dual 4 ohm voice coil sub. This means you can wire it up two different ways. You can wire it in parallel and get a 2 ohm load, or you can wire it in series and get an 8 ohm load. Those are your only two choices with one dual 4 ohm voice coil sub. If you have more than one, the above information changes. Now, a very important point to look at is your amp. Probably nobody on this forum can tell you what the absolute best way to wire your subs is without knowing what kind of amp you have. You said it was a 1500 watt amp, but you need to be more specific with the brand and model number.
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I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: noob
Date Posted: November 26, 2003 at 12:54 PM
sorry my bad.......its the rockford 1500 watt.......501x
Posted By: EzekialPhoenix
Date Posted: November 26, 2003 at 1:26 PM
Your amp is 4 channel, which makes this situation a little bit difficult. I'm sure you don't want to hear this, but that amp is not a great match for that sub. There is really no way that I know of (hopefully someone will prove me wrong) that you can get the amp's full potential in this setup. I think the best thing you can do is wire the sub in series, giving it an 8 ohm load. Then, bridge it at the amp so your are running 8 ohms bridged.
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I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: noob
Date Posted: November 26, 2003 at 1:41 PM
nooooooooooooooooooooooooooo00000000000000000................i dont want an 8 ohm load...........alright what if i had another he2?????.....would there be any way to bring it to 4 or to 2 ohms???
Posted By: EzekialPhoenix
Date Posted: November 26, 2003 at 1:50 PM
Yes. If you bought another HE2, then you could wire the subs in a parallel/series configuration for a 4 ohm load. Then you could bridge it at the amp for 4 ohms bridged, which would give you as much power out of that amp as you're gonna get. Actually, you are probably going to get as much power as you should to power those speakers. If you don't want to get another sub, you could get a new amp, either a mono that is stable at 2 ohms (which most are), or a two-channel that is stable at 2 ohms. I would go with the mono amp route if you were going to get a new amp. If not, get another sub, problem fixed.
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I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: noob
Date Posted: November 27, 2003 at 12:17 AM
noww.....if i were to switch my amp and get the 2 channel(501S)........what would be the best i could do with one sub.......... and if i switched to the 2 channel(501S)...........and had two subs, what would i be able to do then???....... alright.........in between these last two posts i wired my sub up to the 501X......i bridged it at the amp, then i ran the positive to the first positive VC then from there to the other positive VC.......and the same for the negative side.......(sorry i dunno what thats called)......so how much resistance is my amp seeing.......is this the 8 ohm load you were speaking of earlier????
Posted By: forbidden
Date Posted: November 27, 2003 at 2:00 PM
Sounds like you have wired the sub to a 2ohm load. Yes your amp may play it, but it is NOT RECOMMENDED. To make a 8 ohm load you must hook the 1st voice coils negative lead to the 2nd voice coils positive lead, this leaves you with two open speaker terminals, one on each voice coil, hook up the positive and neagative from the amp to the corresponding unused terminals on the sub.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: noob
Date Posted: November 27, 2003 at 2:03 PM
if my amp can handle a 2 ohm load, and so can my sub why wouldnt you reccomend it?
Posted By: forbidden
Date Posted: November 27, 2003 at 2:15 PM
If this is still the 4channel Rockford amp then your amp was designed and engineered to operate at a 2ohm stereo operation, not a 2ohm mono operation. It will work in 2ohm mono but it is still NOT RECOMMENDED. If you have bridged your amp then in fact it is being run at 2ohm mono on two of the 4 channels.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: noob
Date Posted: November 27, 2003 at 2:39 PM
alright makes sense.......so if i could get a hold of the two channel 1500 watt amp.........would that greatly benefit me?.......cuz i plan on having 2 HE2's as soon as money allows........
Posted By: forbidden
Date Posted: November 27, 2003 at 3:00 PM
If you are heading towards 2 he2 subs that require 400 rms each, the amplifier you are looking at will work properly, be it underpowered. So do it right the first time and buy yourself the 801s which will match your subs bang on for the rms power rating. The worst thing in the world you can do to your subs in underpower them. I would also recommend tht you look at the rms power rating of amps and subs and start to talk in that "lingo" as well, it creates much less confusion to everyone. RMS is the true power rating of amps and speakers under continuous operation, you have been quoting peak power ratings which is not a good representation of real world continuous operation. Just a thought.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: noob
Date Posted: November 27, 2003 at 3:21 PM
LOL, alright thanks for all the help...........i'll work on learning all the proper terms
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