Will this fit?? (JL 8W7)
I have sir - actually in response to your prior thread. But I however have no desire to cut away sheet metal that was designed for a purpose. I have done enough installs in many cars over the year none requiring the cutting of the rear deck to fit an 8" sub.
See the thing most people fail to realize you will only get so much output from an IB install. That output is factor of power, cone area, and motor strength. An 8" sub in an IB install will not be able to produce the output, lowend bass, and transient response of a 12, 15, or 18. In IB cone area is king, and when you put an 8 vs a 12.... makes you wonder why you worked so hard to fit that 8 in there...
So in the end it may work, in the end it may fit (with cutting), but is it worth all that work and effort to stuff it in there??? IMO -- No.
See the thing most people fail to realize you will only get so much output from an IB install. That output is factor of power, cone area, and motor strength. An 8" sub in an IB install will not be able to produce the output, lowend bass, and transient response of a 12, 15, or 18. In IB cone area is king, and when you put an 8 vs a 12.... makes you wonder why you worked so hard to fit that 8 in there...
So in the end it may work, in the end it may fit (with cutting), but is it worth all that work and effort to stuff it in there??? IMO -- No.
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so tell it to all the other satisified people on this website. I'm just a squirl.. try'n to get a ... Heck you were the one that gave me the link to them... right?
Last edited by Chad05TL; Jun 10, 2009 at 08:00 PM.
the whole purpose of buying an 8" woofer was so it would fit in the hole in the rear platform. If I put a box around it, then it really would mess with the structural integrity of the back. =) yawl conflict each other.
Its your car man. Replacing the stock sub with and decent aftermarket one is a good idea. If you are looking to add a little more umph to your factory system then good move. You will not have the hard hitting bass of a larger sub but if you wanted that you wouldnt be looking into an eight. Dont get me wrong the 8w7 in the right box tuned properly wil beat and sound GREAT but for your application it will not be as efficient if it was mounted in an enclousure that was made for it. In the end build YOUR system to YOUR specifications ie. sound quality and trunk space. Personally I am some what satisfied with stock (for now). My audio project is in my 5th gen accord, I dont care about trunk space in that. If I was looking to upgrade the TL sound I would first replace the factory full range speakers, add a single 12 in a custom box in out of the way in the trunk and get a solid high fidelity amp for them and remove the factory "sub" completly. I love looking at the inovative systems on this forum and I have actually "borrowed" an idea or two to install in my accord. Do what you want BUT if you do get it to fit.... Share how you did it.
well, an 8" sub should fit in through the top. I assume the magnet will hit the bottom structure. I have not started to look at it yet. But I see no reason why I cannot cut out an area big enough for the magnet to protrude through the bottom metal. I doubt "structural integrity" will be an issue because it's just a hole; and I'm not destroying the rear back plane by cutting it in half. There are already holes in the rear shelf. And again, I hope the top 8" hole is a good fit for the top rim of the subwoofer so I won't have to cut the top level of the rear deck. I only want to modify the bottom level of the rear deck.
I think speakers that sit in the rear deck are just as good as a ported box. I have heard many speaker over the years and the rear shelf can make even crappy speakers sound bassie.
Plus I have seen the boxes that people are put in the corner hole of the trunk. So the sound has to travel all the way from the back of the truck (near the tail lights) to the front of the cabin. I think that is totally inefficient and the sound is not focused inside the cabin. Instead it's in the trunk and subsequently other people can hear it better than you. These TL's are insulated in the cabins. So, bad idea to put the sub in the trunk.
However, if you really want a hard thumper and can channel the bass from the trunk into the cabin, then that would be a great option in my opinion, instead of sticking and open sub in the corner of the trunk near the tail lights. I built my own subwoofer box that I had in my Camaro, but in order to channel the bass into the cabin, I would need to make a new box. One that utilized the passthrough of the arm rest in the back seat. If I built a box, I would angle the box at the edges so that the edges would rest flush against the back seat. However, the speakers would have to be positioned back into the box to create some air space between the seat and the speaker itself. And the speakers would be angled toward the pass through of the arm rest, effectively creating a bass vent. I would have to draw you a picture.
But that would be a lot of work to build a new box and I am over it! I figure I can work a powerful 8" sub into the existing hole so that everything is completely sealed off and the sub is actually IN the cabin compartment itself! I think since it would be in the cabin rather than in the trunk at the back, would produce just as much sound as a larger speaker in the back of the trunk. Plus, that 8" won't require as much power. And since it would be free air, like an open but yet ported box, it again would not require much to produce an equivalent sound of a huge system trapped in the trunk.
Plus, using the hole would mean I don’t have to leave the arm rest down all the time to have bass. And I would have much more room in the trunk for other things, and I don't have to carry around the added weight of a HUGE HEAVY box.
The reasons for doing this are numerous. Don't forget about simplicity of installation too.
I think speakers that sit in the rear deck are just as good as a ported box. I have heard many speaker over the years and the rear shelf can make even crappy speakers sound bassie.
Plus I have seen the boxes that people are put in the corner hole of the trunk. So the sound has to travel all the way from the back of the truck (near the tail lights) to the front of the cabin. I think that is totally inefficient and the sound is not focused inside the cabin. Instead it's in the trunk and subsequently other people can hear it better than you. These TL's are insulated in the cabins. So, bad idea to put the sub in the trunk.
However, if you really want a hard thumper and can channel the bass from the trunk into the cabin, then that would be a great option in my opinion, instead of sticking and open sub in the corner of the trunk near the tail lights. I built my own subwoofer box that I had in my Camaro, but in order to channel the bass into the cabin, I would need to make a new box. One that utilized the passthrough of the arm rest in the back seat. If I built a box, I would angle the box at the edges so that the edges would rest flush against the back seat. However, the speakers would have to be positioned back into the box to create some air space between the seat and the speaker itself. And the speakers would be angled toward the pass through of the arm rest, effectively creating a bass vent. I would have to draw you a picture.
But that would be a lot of work to build a new box and I am over it! I figure I can work a powerful 8" sub into the existing hole so that everything is completely sealed off and the sub is actually IN the cabin compartment itself! I think since it would be in the cabin rather than in the trunk at the back, would produce just as much sound as a larger speaker in the back of the trunk. Plus, that 8" won't require as much power. And since it would be free air, like an open but yet ported box, it again would not require much to produce an equivalent sound of a huge system trapped in the trunk.
Plus, using the hole would mean I don’t have to leave the arm rest down all the time to have bass. And I would have much more room in the trunk for other things, and I don't have to carry around the added weight of a HUGE HEAVY box.
The reasons for doing this are numerous. Don't forget about simplicity of installation too.
Last edited by Chad05TL; Jun 11, 2009 at 01:01 PM.
haha I know thats not a popular comment.. But the trunk itself will act like a huge box for the speakers. The rule is to keep the sound from the front half of the speaker separate from the sound from the rear side of the speaker.. In fact the trunk size may even enable the speakers to sound more bassie than a ported box because of the size of the trunk versus the size of only a box.
haha I know thats not a popular comment.. But the trunk itself will act like a huge box for the speakers. The rule is to keep the sound from the front half of the speaker separate from the sound from the rear side of the speaker.. In fact the trunk size may even enable the speakers to sound more bassie than a ported box because of the size of the trunk versus the size of only a box.
haha I know thats not a popular comment.. But the trunk itself will act like a huge box for the speakers. The rule is to keep the sound from the front half of the speaker separate from the sound from the rear side of the speaker.. In fact the trunk size may even enable the speakers to sound more bassie than a ported box because of the size of the trunk versus the size of only a box.
In response to this post, the trunk might act like a box, and I stress might. But, it will IN NO WAY be as effective as putting the sub in box specifically designed for it.
Just like jnc2000 previously stated, it's not a good idea. You won't get nearly the punch you would if you did it right with a sub-dedicated box.
eh.. I think you would be surprised. A ported box is essentially free air. meaning there is no back pressure from an enclosed box. And the trunk rear deck also is essentially free air. So then, the question is, what is the rear difference? I say it's the size of the trunk acting like a big box vs. a smaller box. And if you look up the figures for tuning a box, then the larger the box, the lower the output of the speakers sound to the human ear. So it doesnt have to do with sealed box versus a non sealed box because a ported box and a rear deck of the trunk are both non-sealed.
I do agree that the metal is probably flimsy. So I will have to make sure nothing is sitting up against it. but what rattles now, is the top carpet piece hitting the glass. Its not the metal shelf.
eh.. I think you would be surprised. A ported box is essentially free air. meaning there is no back pressure from an enclosed box. And the trunk rear deck also is essentially free air. So then, the question is, what is the rear difference? I say it's the size of the trunk acting like a big box vs. a smaller box. And if you look up the figures for tuning a box, then the larger the box, the lower the output of the speakers sound to the human ear. So it doesnt have to do with sealed box versus a non sealed box because a ported box and a rear deck of the trunk are both non-sealed.
You've never heard a decent setup or you wouldn't be saying this stuff.
eh.. I think you would be surprised. A ported box is essentially free air. meaning there is no back pressure from an enclosed box. And the trunk rear deck also is essentially free air. So then, the question is, what is the rear difference? I say it's the size of the trunk acting like a big box vs. a smaller box. And if you look up the figures for tuning a box, then the larger the box, the lower the output of the speakers sound to the human ear. So it doesnt have to do with sealed box versus a non sealed box because a ported box and a rear deck of the trunk are both non-sealed.
http://www.bcae1.com/
http://directacoustics.com/wordpress/?page_id=56
http://www.diysubwoofers.org/
http://www.termpro.com/articles/subwoof.html
Since you’re the genius, I would pass this information to the automobile manufacturers and tell them to start installing boxes in the doors and in the trunk and in the dash. And yes, Stock systems can have really good bass without speaker boxes, like in a high quality system with higher quality components. The reason some stereo systems in cars sounds less than perfect, is because of much less than average quality amps and speakers. Speaker boxes, or the lack thereof, is not the limiting factor in cars. It’s the quality of the speakers and the amp. Nevertheless, as I already stated, the trunk is "the box".
Since you’re the genius, I would pass this information to the automobile manufacturers and tell them to start installing boxes in the doors and in the trunk and in the dash. And yes, Stock systems can have really good bass without speaker boxes, like in a high quality system with higher quality components. The reason some stereo systems in cars sounds less than perfect, is because of much less than average quality amps and speakers. Speaker boxes, or the lack thereof, is not the limiting factor in cars. It’s the quality of the speakers and the amp. Nevertheless, as I already stated, the trunk is "the box".
You're going against well known facts. These things are not disputable, they are facts. You're sounding ignorant posting these things.
Good sounding subs have boxes period. You have never heard a good system. Manufacturers don't use boxes because they take up trunk space and cost more.
I think a good sub , like the JL 8w7, in the factory hole without a box, will sound just as good as the same sub or another sub with similar ratings in a custom box that is locked up in the trunk. PERIOD. haha
Last edited by Chad05TL; Jun 14, 2009 at 05:52 PM.
Think what you want. I don't give a shit. I'm out of here. I doubt anyone else will help you out either since you know more than the engineers do. Why don't you start a thread on the advantages of a non-free air sub in free air.
Since you’re the genius, I would pass this information to the automobile manufacturers and tell them to start installing boxes in the doors and in the trunk and in the dash. And yes, Stock systems can have really good bass without speaker boxes, like in a high quality system with higher quality components. The reason some stereo systems in cars sounds less than perfect, is because of much less than average quality amps and speakers. Speaker boxes, or the lack thereof, is not the limiting factor in cars. It’s the quality of the speakers and the amp. Nevertheless, as I already stated, the trunk is "the box".
Most systems do not sound bad or good because of the components used but because of the install. Im sure most seasoned audio guys here will agree that its 30% equipment and about 70%install that makes a good system.
BTW: The box in a substage is the utmost important part, hands down.
I named JL 8w7. So I guess I HAVE heard of a well designed system.
And I think quality components is just as important as the installation. Because its easier to make good components sound good than bad components sound good, even if the install is right or wrong.
Again, in the case of my 3rd gen TL, since there is no place for a box to be installed inside the cabin, unlike my 97 camaro. Therefore I think it would sound just as good to have a high quality sub in the factory hole in the rear deck, than sticking a sub in a ported box in the trunk. Thats just my 2 cents. I'm not saying its best for you. but for me, its not worth carrying around the added weight of a box. Especially one that fits in the corner of the trunk all the way at the back near the tail lights. I want to fill the cabin with music, not the trunk. And by the time to sound gets into the cabin form that "powerful" box you built, the sound will be deminished coming through the seat and other structure.
Plus you can install the speakers in the factory locations in a "good" manner as you stated. ie. right size, and sealed off and a flush fit. Thats the main thing you want to do is separate the front of the speaker from the back of the speaker. And the bigger the box, the lower the sound frequency. And since I wouldn't install a sealed box anyway, then the trunk itself will work fine for me since its not sealed either, but there is a distinction between trunk and cabin, so it's still separate air space and the trunk is big.
So called "professionals" install speakers in doors. Have you ever looked inside a door? And we can still get bass out of a 6.5" speaker. amazing. And the doors dont have any fancy foam or cotton or special spray-on lining to create "good sound" from the factory or from a pro. In a door, you got a hard glass window and a metal case. So i have no problem with placing a high quality sub in the rear deck. Now if I can just figure out a way to hide the amp, then I wont even be loosing any space.
And I think quality components is just as important as the installation. Because its easier to make good components sound good than bad components sound good, even if the install is right or wrong.
Again, in the case of my 3rd gen TL, since there is no place for a box to be installed inside the cabin, unlike my 97 camaro. Therefore I think it would sound just as good to have a high quality sub in the factory hole in the rear deck, than sticking a sub in a ported box in the trunk. Thats just my 2 cents. I'm not saying its best for you. but for me, its not worth carrying around the added weight of a box. Especially one that fits in the corner of the trunk all the way at the back near the tail lights. I want to fill the cabin with music, not the trunk. And by the time to sound gets into the cabin form that "powerful" box you built, the sound will be deminished coming through the seat and other structure.
Plus you can install the speakers in the factory locations in a "good" manner as you stated. ie. right size, and sealed off and a flush fit. Thats the main thing you want to do is separate the front of the speaker from the back of the speaker. And the bigger the box, the lower the sound frequency. And since I wouldn't install a sealed box anyway, then the trunk itself will work fine for me since its not sealed either, but there is a distinction between trunk and cabin, so it's still separate air space and the trunk is big.
So called "professionals" install speakers in doors. Have you ever looked inside a door? And we can still get bass out of a 6.5" speaker. amazing. And the doors dont have any fancy foam or cotton or special spray-on lining to create "good sound" from the factory or from a pro. In a door, you got a hard glass window and a metal case. So i have no problem with placing a high quality sub in the rear deck. Now if I can just figure out a way to hide the amp, then I wont even be loosing any space.
I named JL 8w7. So I guess I HAVE heard of a well designed system.
And I think quality components is just as important as the installation. Because its easier to make good components sound good than bad components sound good, even if the install is right or wrong.
Again, in the case of my 3rd gen TL, since there is no place for a box to be installed inside the cabin, unlike my 97 camaro. Therefore I think it would sound just as good to have a high quality sub in the factory hole in the rear deck, than sticking a sub in a ported box in the trunk. Thats just my 2 cents. I'm not saying its best for you. but for me, its not worth carrying around the added weight of a box. Especially one that fits in the corner of the trunk all the way at the back near the tail lights. I want to fill the cabin with music, not the trunk. And by the time to sound gets into the cabin form that "powerful" box you built, the sound will be deminished coming through the seat and other structure.
Plus you can install the speakers in the factory locations in a "good" manner as you stated. ie. right size, and sealed off and a flush fit. Thats the main thing you want to do is separate the front of the speaker from the back of the speaker. And the bigger the box, the lower the sound frequency. And since I wouldn't install a sealed box anyway, then the trunk itself will work fine for me since its not sealed either, but there is a distinction between trunk and cabin, so it's still separate air space and the trunk is big.
So called "professionals" install speakers in doors. Have you ever looked inside a door? And we can still get bass out of a 6.5" speaker. amazing. And the doors dont have any fancy foam or cotton or special spray-on lining to create "good sound" from the factory or from a pro. In a door, you got a hard glass window and a metal case. So i have no problem with placing a high quality sub in the rear deck. Now if I can just figure out a way to hide the amp, then I wont even be loosing any space.
And I think quality components is just as important as the installation. Because its easier to make good components sound good than bad components sound good, even if the install is right or wrong.
Again, in the case of my 3rd gen TL, since there is no place for a box to be installed inside the cabin, unlike my 97 camaro. Therefore I think it would sound just as good to have a high quality sub in the factory hole in the rear deck, than sticking a sub in a ported box in the trunk. Thats just my 2 cents. I'm not saying its best for you. but for me, its not worth carrying around the added weight of a box. Especially one that fits in the corner of the trunk all the way at the back near the tail lights. I want to fill the cabin with music, not the trunk. And by the time to sound gets into the cabin form that "powerful" box you built, the sound will be deminished coming through the seat and other structure.
Plus you can install the speakers in the factory locations in a "good" manner as you stated. ie. right size, and sealed off and a flush fit. Thats the main thing you want to do is separate the front of the speaker from the back of the speaker. And the bigger the box, the lower the sound frequency. And since I wouldn't install a sealed box anyway, then the trunk itself will work fine for me since its not sealed either, but there is a distinction between trunk and cabin, so it's still separate air space and the trunk is big.
So called "professionals" install speakers in doors. Have you ever looked inside a door? And we can still get bass out of a 6.5" speaker. amazing. And the doors dont have any fancy foam or cotton or special spray-on lining to create "good sound" from the factory or from a pro. In a door, you got a hard glass window and a metal case. So i have no problem with placing a high quality sub in the rear deck. Now if I can just figure out a way to hide the amp, then I wont even be loosing any space.
I named JL 8w7. So I guess I HAVE heard of a well designed system.
And I think quality components is just as important as the installation. Because its easier to make good components sound good than bad components sound good, even if the install is right or wrong.
Again, in the case of my 3rd gen TL, since there is no place for a box to be installed inside the cabin, unlike my 97 camaro. Therefore I think it would sound just as good to have a high quality sub in the factory hole in the rear deck, than sticking a sub in a ported box in the trunk. Thats just my 2 cents. I'm not saying its best for you. but for me, its not worth carrying around the added weight of a box. Especially one that fits in the corner of the trunk all the way at the back near the tail lights. I want to fill the cabin with music, not the trunk. And by the time to sound gets into the cabin form that "powerful" box you built, the sound will be deminished coming through the seat and other structure.
Plus you can install the speakers in the factory locations in a "good" manner as you stated. ie. right size, and sealed off and a flush fit. Thats the main thing you want to do is separate the front of the speaker from the back of the speaker. And the bigger the box, the lower the sound frequency. And since I wouldn't install a sealed box anyway, then the trunk itself will work fine for me since its not sealed either, but there is a distinction between trunk and cabin, so it's still separate air space and the trunk is big.
So called "professionals" install speakers in doors. Have you ever looked inside a door? And we can still get bass out of a 6.5" speaker. amazing. And the doors dont have any fancy foam or cotton or special spray-on lining to create "good sound" from the factory or from a pro. In a door, you got a hard glass window and a metal case. So i have no problem with placing a high quality sub in the rear deck. Now if I can just figure out a way to hide the amp, then I wont even be loosing any space.
And I think quality components is just as important as the installation. Because its easier to make good components sound good than bad components sound good, even if the install is right or wrong.
Again, in the case of my 3rd gen TL, since there is no place for a box to be installed inside the cabin, unlike my 97 camaro. Therefore I think it would sound just as good to have a high quality sub in the factory hole in the rear deck, than sticking a sub in a ported box in the trunk. Thats just my 2 cents. I'm not saying its best for you. but for me, its not worth carrying around the added weight of a box. Especially one that fits in the corner of the trunk all the way at the back near the tail lights. I want to fill the cabin with music, not the trunk. And by the time to sound gets into the cabin form that "powerful" box you built, the sound will be deminished coming through the seat and other structure.
Plus you can install the speakers in the factory locations in a "good" manner as you stated. ie. right size, and sealed off and a flush fit. Thats the main thing you want to do is separate the front of the speaker from the back of the speaker. And the bigger the box, the lower the sound frequency. And since I wouldn't install a sealed box anyway, then the trunk itself will work fine for me since its not sealed either, but there is a distinction between trunk and cabin, so it's still separate air space and the trunk is big.
So called "professionals" install speakers in doors. Have you ever looked inside a door? And we can still get bass out of a 6.5" speaker. amazing. And the doors dont have any fancy foam or cotton or special spray-on lining to create "good sound" from the factory or from a pro. In a door, you got a hard glass window and a metal case. So i have no problem with placing a high quality sub in the rear deck. Now if I can just figure out a way to hide the amp, then I wont even be loosing any space.
t/s perimeters determine alot..
master of sound you are not...
-Jason
IB - Infinite baffle
t/s params to look for
Higher Qes
Higher Qms
Higher Qts
Lower Cms
Higher Fs
Lower Vas
Design will usually result in a much higher Fb
-Jason
so easy to say that you lack the acoustic background of myself...and...pretty much will become the laughing stock in this section of the forum...please think twice before clicking that submit button...got it? People like you seriously upset me...you're the reason y people cost this industry money...
t/s params to look for
Higher Qes
Higher Qms
Higher Qts
Lower Cms
Higher Fs
Lower Vas
Design will usually result in a much higher Fb
-Jason
so easy to say that you lack the acoustic background of myself...and...pretty much will become the laughing stock in this section of the forum...please think twice before clicking that submit button...got it? People like you seriously upset me...you're the reason y people cost this industry money...
Last edited by CSWBiggs; Jun 15, 2009 at 12:13 AM.
I'm done trying to reason with you Chad. You have proven your ignorance time and time again. Like I have told you, and like Biggs has told you TS parameters do determine a lot. Car manufactures have a speaker that is designed, tooled, and manufactured on a mass basis -- using off the shelf motors, suspensions, coils, cones, etc. While they do look into the acoustic response of the speaker before selecting just any old woofer... the most important decision always involves around COST.
JL did not design the 8W7 as an IB subwoofer. It is not marketed as an IB subwoofer. Just because you throw around the fact that you are using JL audio parts doesn't mean shit.
80% install / 20% equipment. I, as well as many other members on this board realize that you can have the best equipment in the world, and it will sound like shit... unless its installed correctly.
Good day sir. I shall waste no more time and energy on you. Your ignorance has been proven, and you shall remain labeled as such until proven otherwise.
JL did not design the 8W7 as an IB subwoofer. It is not marketed as an IB subwoofer. Just because you throw around the fact that you are using JL audio parts doesn't mean shit.
80% install / 20% equipment. I, as well as many other members on this board realize that you can have the best equipment in the world, and it will sound like shit... unless its installed correctly.
Good day sir. I shall waste no more time and energy on you. Your ignorance has been proven, and you shall remain labeled as such until proven otherwise.
Your "thinking outside of the box" and suggesting a W7 in an IB setup is like saying maybe we should put square tires on the car.
Do yourself a favor and get an education. Go listen to some real systems, not your glorified factory setup.
Chris do what you want. You can put the 8 in the rear deck for one simple reason.. Its YOUR system. As I stated it will sound 10000% better in a tuned enclosure but if you want to pur it in the rear deck that is your right. I am by no means saying your logic is not flawed but just saying that the proof is in the pudding. Install it and see if you like it and let us know. Again I am not saying that this set up in right but its your car.








