Woofer issue (C4)
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Joined: Mar 1999
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From: Bartlett Illinois
Woofer issue (C4)
So my rear subs do not sound right in the factory locations. I removed one tonight to check and they are sealed, no leaks that I can see. but the magnet is very close to the bottom of the opening.. I could mod someting to have eu-700 fit better..
OR?? open for some ideas
pictures
http://vettextc.jiminees.com/stereo-II
OR?? open for some ideas
pictures
http://vettextc.jiminees.com/stereo-II
Thread Starter
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Joined: Mar 1999
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From: Bartlett Illinois
Originally Posted by scott_fx
are they out of phase?
I honestly don't know..
Pro
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From: Center Line MI
Originally Posted by -=Jeff=-
Meaning is the Woofer wired backwards? I don't think so. I removed the Woofer to check the enclosure size, and disconnected it. When I have a chance I will reinstall it and wire it. but I was testing just one woofer when I noticed the problem.. This also seemed that same with the Kicker come to think if it.. may it is the stock enclosure and the brand speakers..
I honestly don't know..
I honestly don't know..
Thread Starter
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From: Bartlett Illinois
Originally Posted by wiz1500
What did you come up with for QF on your enclosure ???? You may lot have enough......Also are they firing at each other????you may have a cansilation pro..
I am thinking it is the shape of the OEM area I am using. I bet in a box they would sound great..
I ahve an area of 16x32x about 7 for a box/amp rack.. I have one other spot to hide an amp, but it will be tight
Le Mans Master
Joined: Jun 2004
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From: Los Angeles Ca
Originally Posted by -=Jeff=-
Meaning is the Woofer wired backwards? I don't think so. I removed the Woofer to check the enclosure size, and disconnected it. When I have a chance I will reinstall it and wire it. but I was testing just one woofer when I noticed the problem.. This also seemed that same with the Kicker come to think if it.. may it is the stock enclosure and the brand speakers..
I honestly don't know..
I honestly don't know..
Thread Starter
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Joined: Mar 1999
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From: Bartlett Illinois
Originally Posted by bogus
add a thicker baffle?
I have 3/4" baffle for the eD and had a 1/2" for the kicker..
I think it has to do with the shpe of the enclosure, most of the air space its to the side of the woofer, not behind it directly
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Melting Slicks
Joined: Jan 2002
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From: Atlanta GA
What do you mean by "doesn't sound right", are they muddy, are they bottoming out, are they not loud?
A friend in my local club has 8" IDs subs in the stock locations in a zr1 and they sound very good. Tight as can be and very loud. No cancellation. If anything, the shape of the glass and the angle of the subs results in some cabin gain.
My first guess would be you have an air leak, its a PIA to get that whole thing sealed. Or you don't have enough airspace for the sub. Or both.
A friend in my local club has 8" IDs subs in the stock locations in a zr1 and they sound very good. Tight as can be and very loud. No cancellation. If anything, the shape of the glass and the angle of the subs results in some cabin gain.
My first guess would be you have an air leak, its a PIA to get that whole thing sealed. Or you don't have enough airspace for the sub. Or both.
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From: Bartlett Illinois
Originally Posted by leolufse
What do you mean by "doesn't sound right", are they muddy, are they bottoming out, are they not loud?
A friend in my local club has 8" IDs subs in the stock locations in a zr1 and they sound very good. Tight as can be and very loud. No cancellation. If anything, the shape of the glass and the angle of the subs results in some cabin gain.
My first guess would be you have an air leak, its a PIA to get that whole thing sealed. Or you don't have enough airspace for the sub. Or both.
A friend in my local club has 8" IDs subs in the stock locations in a zr1 and they sound very good. Tight as can be and very loud. No cancellation. If anything, the shape of the glass and the angle of the subs results in some cabin gain.
My first guess would be you have an air leak, its a PIA to get that whole thing sealed. Or you don't have enough airspace for the sub. Or both.
Last edited by -=Jeff=-; Oct 31, 2006 at 12:22 PM.
Pro
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From: Center Line MI
Originally Posted by -=Jeff=-
QF??? well considering with one disconnected and one connected i have this problem I am nto sure it is a cancellation problem, but could be.
I am thinking it is the shape of the OEM area I am using. I bet in a box they would sound great..
I ahve an area of 16x32x about 7 for a box/amp rack.. I have one other spot to hide an amp, but it will be tight
I am thinking it is the shape of the OEM area I am using. I bet in a box they would sound great..
I ahve an area of 16x32x about 7 for a box/amp rack.. I have one other spot to hide an amp, but it will be tight
If your CF is right then I would look for an air leak.
Last edited by wiz1500; Oct 31, 2006 at 12:27 PM.
Thread Starter
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From: Bartlett Illinois
Found 3 spots where there were leaks.. I also used Deadener on the back of the baffle ( also helped to seal the mounting holes. I was not able to connect it back up though. I did manage to burn a Test Tone Disc, and will connect the amp and set the gains with a DMM for now..
then I will connect the Speaker and see what happens
then I will connect the Speaker and see what happens
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From: Bartlett Illinois
Originally Posted by VinceC5
more dynamat extreme and some polyfill should also help. Is that MDF or plywood? Can't realy tell from the pics. What are using between the front baffle and the car?
Like I said I still have to test it out.. I did the Driverside though..
if that works I will move to the passenger side.
Then on the the amp layout
Melting Slicks
Joined: Sep 2004
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From: Spring Texas
Originally Posted by -=Jeff=-
The Baffle is Plywood (all I have at the time) I am using 1/2 wide speaker gasket tape (liek the stuff Parts Express sells. I also have a layer of Deadener on the bottom of the baffle. Hopefully all that will help.
Like I said I still have to test it out.. I did the Driverside though..
if that works I will move to the passenger side.
Then on the the amp layout
Like I said I still have to test it out.. I did the Driverside though..
if that works I will move to the passenger side.
Then on the the amp layout
Thread Starter
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Joined: Mar 1999
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From: Bartlett Illinois
Originally Posted by VinceC5
plywood resonates (vibrates) more than mdf, but since you are only using it for the front, I think it should be ok. Just be sure to completely seal the enclosure. The woofer cone should be stiff if it is sealed properly. If there is a lot of movement of the cone, then you still have a leak somewhere. Good luck.
Pro
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From: Center Line MI
Originally Posted by -=Jeff=-
but the MDF plate I had with the Kickers did the same thing. I also thought it was not a good idea to push the cone to test it... Also with a layer of deadening otnhe plywood I should be good too I would think
If you have both drivers hooked up on a mono block you will see movement on the other side....also.......It has to feel tight...
Thread Starter
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From: Bartlett Illinois
Originally Posted by wiz1500
You can push on it just don't be a wild man....
If you have both drivers hooked up on a mono block you will see movement on the other side....also.......It has to feel tight...
If you have both drivers hooked up on a mono block you will see movement on the other side....also.......It has to feel tight...
Cool I will have to check it out tonight if time permits..
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From: Canton GA
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Originally Posted by leolufse
What do you mean by "doesn't sound right", are they muddy, are they bottoming out, are they not loud?
A friend in my local club has 8" IDs subs in the stock locations in a zr1 and they sound very good. Tight as can be and very loud. No cancellation. If anything, the shape of the glass and the angle of the subs results in some cabin gain.
My first guess would be you have an air leak, its a PIA to get that whole thing sealed. Or you don't have enough airspace for the sub. Or both.
A friend in my local club has 8" IDs subs in the stock locations in a zr1 and they sound very good. Tight as can be and very loud. No cancellation. If anything, the shape of the glass and the angle of the subs results in some cabin gain.
My first guess would be you have an air leak, its a PIA to get that whole thing sealed. Or you don't have enough airspace for the sub. Or both.
: That'd be me.I used weather stripping around the baffle to get a tight seal. The air space behind it is sealed up tight. I also added polyfill to deaden any standing waves and like Lars said, it hits hard and deep.