my amp
120 @ 4ohm
200 @ 2ohm

my sub
4+4 DVC

current just using one set of coils on the sub. so I think right now I'm 120@4ohms. but if I wire like below then it should make my sub 2ohms, which is better right? since my amp pushes 200 @ 2ohms?

1 DVC driver with Voice Coils in Parallel
Connecting the two voice coils of the driver in parallel (+ to +, - to -) will result in the following impedances:
Dual-6 Ohm Subwoofer: 3 Ohms
Dual-4 Ohm Subwoofer: 2 Ohms
Dual-2 Ohm Subwoofer: 1 Ohms
Dual-1.5 Ohm Subwoofer: 0.75 Ohm

 

wire the sub to a two ohm load. Jl and most companies will void there warrenty is you run one coil. and they can tell if you are doing this too. I had this problem with a customer. I sent in his sub for warrenty and the canceled on him. I took a lost because I felt bad. It will be fine a 2 ohm and it will hit harder because it will recive more power.

 

Yeah you should never run one coil on a sub you asking for trouble, Jump one + to the other and out to the amp then jump one - to the other and out to the amp. You have to have a mono block amp tho. If you are using say a 2ch amp you will have to bridge the amp which will result in the amp seeing 1ohm per channel. If you amp is not 1 ohm stable then you may fry your amp.

 

you could run it at 8 ohms, but you wouldnt have any power left of your amp.


i would just get another amp

 

Actually it is perfectly fine to run one voice coil.

You can even increase dampening by shorting one of the coils.

Power handling is reduced in half with just one coil.

 

my sub is 200w continous, so if I wire like the picture it will be perfect right?

what's this about 8ohm? isnt 8 ohm the weakest? how would I set it up for 8 ohm

oh yea, does it matter which coils links to the amp? or is there a specific top coils and bottom coils?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITB &raquo;</TD></TR><TR><TD CLASS="quote">my sub is 200w continous, so if I wire like the picture it will be perfect right?

what's this about 8ohm? isnt 8 ohm the weakest? how would I set it up for 8 ohm

oh yea, does it matter which coils links to the amp? or is there a specific top coils and bottom coils?</TD></TR></TABLE>
8 ohms would be in series.

It doesn't matter which coil goes to the amp.

 

What amp do you have and what sub do you have?

 

jl e1200 amp (120@2,200@4)

eclipse sw6103dvc 10" (200w, 300wmax)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxxtreme &raquo;</TD></TR><TR><TD CLASS="quote">8 ohms would be in series.

It doesn't matter which coil goes to the amp.</TD></TR></TABLE>

whats the difference between series and parralel? I search but it didnt come up. I always though the smaller the number of ohm the more powerful it is

 

Go here http://www.infinitysystems.com/caraudio/2-4-2.aspx

 

thanks everyone I hooked it up 2 ohms and it actually knocks harder! alot harder. before even if I cranked it up it would knock but now it is actually boom I can feel it in my heart. but now whenever it booms there is a little rattle sound.. i dont know if it is the plastic in my car or i damaged the sub somehow when I kept taking it out and putting it in.. I did loosen one of the rubber peices around where you screw. but when I stick my head in my trunk I can hear the sound coming from the quarter panel area but I'm not shure if its just my ears, but I can hear it sitting in the driver seat so how can this be possible.. I hope its not the sub I just bought it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxxtreme &raquo;</TD></TR><TR><TD CLASS="quote">Actually it is perfectly fine to run one voice coil.

You can even increase dampening by shorting one of the coils.

Power handling is reduced in half with just one coil.</TD></TR></TABLE>

How are you going to say this! I take it you don't follow instruction.s I not trying to bash or flame, but do what the instruction says. Jl states" MAKE SURE BOTH COILS ARE POWERED, IF NOT YOUR WARRENTY WILL BE VOIDED" SAME AS MTX. Why would you tell the guy not to follow instructions. Are you gonna cover his warrenty if the sub is damage. If so good for you. you must have deep pockets. because alot of people are going to damage there subs because they followed your advise. It might not burn out the same day or month but damage is going to occure. Please follow your manufactor instruction or take it to someone who knows what he or her is doing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote">How are you going to say this!</TD></TR></TABLE>

Car manufacturers also say do not modify your exhaust. Actually it's illegal in a lot of states. How many people still insist on having a coffee can for an exhaust?

It's called I know more then you And those instruction are for a normal idiot on the street. Using one coil to tune a speaker is common practice if you know what you are doing. As I mentioned before your power handling is reduced in half. duh...

Here is some lite reading for you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxxtreme &raquo;</TD></TR><TR><TD CLASS="quote">Car manufacturers also say do not modify your exhaust. </TD></TR></TABLE>

that's not true... catback exhaust dont affect warranty so they dont care

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITB &raquo;</TD></TR><TR><TD CLASS="quote">that's not true... catback exhaust dont affect warranty so they dont care</TD></TR></TABLE>
It will effect the warranty if the exhaust was to cause a failure. Example: a defective exhaust that is plugged could cause gaskets, seals, and other parts to fail. This would not be covered under warranty. You would pay because you changed the exhaust.

Just about all aftermarket exhausts have no heat shield. You know that barrier that wraps around the stock exhaust. If your aftermarket exhaust caused a fire guess what not covered. Don't laugh it common on the NSX for people who change there exhaust. They end up melting there tool tray in the trunk.

It's unlikely but just as unlikely that someone who knows what they are doing would blow a speaker by using one coil.

 

Sorry wrx-killer but nsxxtreme is correct about only wiring one VC, however you are correct that manufacturers warn against wiring only one VC, not sure why except as has been mentioned, the sub will only handle 1/2 it's rated power, so what I think they are worried about is that if you hook up one of their "600W RMS DVC" subs to a 600W RMS amp, and only wire one VC, well you would expect extreme damage to that VC and they would void warranty, but then the result would be the same if you wired a "600W RMS DVC" sub to a 1200W RMS amp, with both VCs wired, they would still void the warranty.

Some more light reading, http://manuals.harman.com/INF/...).pdf gee I wonder what the inserts are? 94

 

^^^^^ I know you can get away with it. never said you could not do it. But why tell people its okay to do it when there warranty will be voided. tuning is anthor factor, but bumping on the other hand is diffrent. I have this problem with customers at my shop. That "I" own. I bit the bullet because When I send the subs back to the manufactor, and I give them one out of my inventory , I take a loss because they won't cover it. And the manufactor won't and will not cover it. Also why did you leave out most of my sentance when you qouted me? hummmm wonder why, Not Saying I am the god of install but I have been doing it for 12 years, have plenty of show cars underneth my belt, Like fcm said it goes both ways. and its true. Most people here are noob when it comes to this. thats why they ask questions, there are gonna be a bunch of people that are going to have a high power amp and not really know what there doing and are going to melt a vc, Some off theses people are going to rock the world and not know they are doing damage to there sub. I not bashing you or flaming and saying you don't know what you are talking about. I have seen a couple of your post and not responded because you gave they right facts. I take offence for you to say you know more then me, but o well. I do this as a living and I pertty good at it. Also for you to say adding a aftermarket exhaust to your car voids your warranty is also wrong and right. It depends on were you live at. Out here my friend that owns diamond bar honda + diamond bar motorsports, sell brand new cars off there dealer ships with them allreasy hooked up and they still maintain the warranty. If its done at there shop by a certified installer. hell they even refill nos bottles and warranty them if the kit was installed buy them. Dont beleive me give them a call. To all the honda-tech members that bought subs from me this week and last, I can not cover your warranty if you do this sorry, tune it okay but to rock on it not okay. I hope people can see were I am coming from, And I will strive to help people with the right knowledge, If I don't know I will seek it, Desmon

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote">Also why did you leave out most of my sentance when you qouted me?</TD></TR></TABLE>
Because it takes up to much space and none of the rest contained a question. I'm lazy I dont like to write novels.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote">I take offence for you to say you know more then me, but o well. </TD></TR></TABLE>
Your offended to easy....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote"> But why tell people its okay to do it when there warranty will be voided. </TD></TR></TABLE>It will only void the warranty if what you did caused it to fail. This would be pretty easy to prove one coil burnt the other not burnt. You burn any voice coil and manufacturer is going to tell you to go fly a kite. If not they are eating the cost for PR. Using just one coil will not cause a speaker to fail. Overpowering that one or two coil(s) will cause it to fail. You can "Bump" one coil you just can't send as much power through it. Half is being conservative it can take more then half the rated power.

The entire purpose of making a DVC speaker is to make it versatile. If they wanted to make a 2 ohm SVC they could.

I simply responded to the statement that said you should "never" use just one coil. This statement is wrong.

*bonus question* I have two mono amplifiers and one 2 ohm load. How do I get the most power out of this setup?


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote"> Out here my friend that owns diamond bar honda + diamond bar motorsports, sell brand new cars off there dealer ships with them allreasy hooked up and they still maintain the warranty. </TD></TR></TABLE>I belive you because I have bought a car like this before. The dealership is honoring the warranty NOT the vehicle manufacturer. This is a verbal warranty... great if it's a respectable company. But if you were to run into problems your screwed. I prefer to have things in writing.



Modified by nsxxtreme at 12:00 PM 11/17/2005

 

[QUOTE=nsxxtreme]
Because it takes up to much space and none of the rest contained a question. I'm lazy I dont like to write novels.


*bonus question* I have two mono amplifiers and one 2 ohm load. How do I get the most power out of this setup?

First give me the amps used, If it like mtx, two amps can be strapped toghter, is the sub dvc or what? Need a little more info. Trying to take me to school huh, lol. There are a couple of ways to do it, Plus each installer has diffrent ways.

 

You need to add the [/quote] ^^^^

I just said a 2 ohm load the actual wiring of the 2 ohm load is irrelevant. Could be two speakers it could be one. It could even be 4 8 ohm speakers. It doesn't matter.

Your on the right track, but if we just hook two ampliers together with the same signal (hint) then this wont work. Both sides of the coil will get the same signal. In order to have current flow through the coil you need a difference in voltage.

The amp is also somewhat irrelavant. as long as it's a mono amplifier. Meaning one channel. You don't need the manufacturer to do anything special to the amp.



Modified by nsxxtreme at 2:01 PM 11/18/2005

 

nsxxtreme is pretty knowledgeable

 

sorry I had to work. Here's the deal, with two amps strapped on is going to be the master and the other one a slave, one amp is going to be the postive amp, set the phase on this amp to 0 degree. The other amp make it the negative, then set its phase switch to 180 degrees.

The rca coming from the source unit is going to need to be split into each of theses amps. using a y-rca cable split the left and do the same for the right

depending on the amp connect the positive amp to the positive part of the voice coil, on the negitive amp connect it to the negitive on the voice coil.

When doing this the two amps are to require"gain matching" Find a test cd with test tones and have a volt ohm mete/mulit meter. two would be better.

To wrapp this up quickly because I don't want to go into full detail. It is alot of typing. pop in the test cd. play a flat tone around 60-80hz. set your mulit meter to measure ac voltage. measure each amp to get them as close as possiable. It would be better to have two meters. If anyone wants to go into further detail they can call. any other bonuse questions?

 

I bow down to you guys, yall know your ****.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote">sorry I had to work. Here's the deal, with two amps strapped on is going to be the master and the other one a slave, one amp is going to be the postive amp, set the phase on this amp to 0 degree. The other amp make it the negative, then set its phase switch to 180 degrees.</TD></TR></TABLE>
Master-slave naming convention seems rather odd. Maybe this is one of those terms taken from the PC world and used for auto industry incorrectly *shrug*. Master usually means it has priority over the slave device if a conflict was to occur. Your description of how to set the amps up is correct. If there is no switch on the amp you just need something to invert one of the incomming signals. One amp will produce the positive half of the sinewave and the other amp will produce the negative half of the sinewave.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote">When doing this the two amps are to require"gain matching" Find a test cd with test tones and have a volt ohm mete/mulit meter. two would be better.</TD></TR></TABLE> We would prefer an oscilliscope here but an RMS DMM would get you by. An oscilliscope would show the true amplitude and phase of the signals.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wrx-killer &raquo;</TD></TR><TR><TD CLASS="quote">any other bonuse questions?</TD></TR></TABLE>Since you asked. Why cant we do this with two bridged amplifiers?