12 cvx vs 15

[woodplock7 10+ year member]

hey guys which do you think will get louder? 2 12" cvx ported or 2 15" cvx sealed. the biggest box i could make would be around 4.5-5 cubes. Thanks! oh and i did search but i didnt find anything that would give me this awnser.

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[woodplock7 10+ year member]

anyone?

 

[cotjones 10+ year member]

id go 15 sealed the 12 in the ported still shouldn't match the output of the sealed 15. or if it does not enough because your SQ is going to be way better with the sealed

 

[psych0ticnemes1 5,000+ posts]

2 12's ported for sure... but it is a guessing game

 

[Chevyaudio 5,000+ posts]

id go 15 sealed the 12 in the ported still shouldn't match the output of the sealed 15. or if it does not enough because your SQ is going to be way better with the sealed

You are quite funny...

So you are so sure about this eh?

Ok, I'll take the 12" and build a ported box, you can have the 15"...lets see who will be louder.

 

[cotjones 10+ year member]

You are quite funny...
So you are so sure about this eh?

Ok, I'll take the 12" and build a ported box, you can have the 15"...lets see who will be louder.

no i'm not sure bout it... it depends on the box... i said it could be louder, but to do so would give a peakier responce... i'd much rather have the 15's.... i guess it depends on if you just want to get as much volume as you can out of it on one type of music, say rap, go ported

 

[woodplock7 10+ year member]

you guys think 16 tall would be to small for the 15s?

 

[t-money 10+ year member]

12's will most likely be louder around tuning, however the 15's should kill them in the low end and above tuning frequency (depending on tuning). I will take the 15's.The extra cone area will make up for the ported box, especially since you only have 5 cubes. i had a similar choice and went with 15's, best decision i made.

edit: hey chevy, have you heard the cvx's? cause if you think two 12's in 5 cubes ported will be louder than two 15's in 5 cubes sealed, you need to go audition them. My friend is a kicker dealer and like i mentioned, i would take the 15's. Also cvx's are better suited sealed, so to me this is a no brainer. If you had more room than the 12 could possible peak louder but after going with 15's i don't want 12's again.hth

 

[cotjones 10+ year member]

12's will most likely be louder around tuning, however the 15's should kill them in the low end and above tuning frequency (depending on tuning). I will take the 15's.The extra cone area will make up for the ported box, especially since you only have 5 cubes. i had a similar choice and went with 15's, best decision i made.
edit: hey chevy, have you heard the cvx's? cause if you think two 12's in 5 cubes ported will be louder than two 15's in 5 cubes sealed, you need to go audition them. My friend is a kicker dealer and like i mentioned, i would take the 15's. Also cvx's are better suited sealed, so to me this is a no brainer. If you had more room than the 12 could possible peak louder but after going with 15's i don't want 12's again.hth

ding ding ding THANK YOU //content.invisioncic.com/y282845/emoticons/goldcup.gif.fed6f294523aaacf5ee40f0193e776f8.gif

best freind's dad had 2 cvx12's in a SPEC ported box... it sounded like money shit on everything but like 3 songs... he put them in a sealed and wow the difference in quality is crazy i actually like them alot for the price when sealed

 

[cotjones 10+ year member]

edit: hey chevy, have you heard the cvx's? cause if you think two 12's in 5 cubes ported will be louder than two 15's in 5 cubes sealed, you need to go audition them. My friend is a kicker dealer and like i mentioned, i would take the 15's. Also cvx's are better suited sealed, so to me this is a no brainer. If you had more room than the 12 could possible peak louder but after going with 15's i don't want 12's again.hth

like i said yeah sure the 12's can be louder but to make em, you purty much throw sq to shit

 

[Immacomputer 10+ year member]

like i said yeah sure the 12's can be louder but to make em, you purty much throw sq to shit

You should expect shitty sound when you build the box the manufacture says instead of building one that suits your wants and your driver's needs.

Take a look at these graphs and explain to me how the ported box creates a "peaky" response:

While this is just one application, it does speak pretty well for the sub in a ported box once cabin gain has been taken into account.

Here is the sub sealed in the same vehicle:

Hmmm... I would take that ported response curve over the sealed curve any day. Care to explain how the sound quality of the driver will go to shit with a curve nice and flat like that? Don't even bother with group delay because it will be very low in a ported enclosure with those specs (2.2 @ 32hz).

Go back into hiding; things were better when you weren't talking out of your ***.

 

[cotjones 10+ year member]

You should expect shitty sound when you build the box the manufacture says instead of building one that suits your wants and your driver's needs.
Take a look at these graphs and explain to me how the ported box creates a "peaky" response:

While this is just one application, it does speak pretty well for the sub in a ported box once cabin gain has been taken into account.

Here is the sub sealed in the same vehicle:

Hmmm... I would take that ported response curve over the sealed curve any day. Care to explain how the sound quality of the driver will go to shit with a curve nice and flat like that? Don't even bother with group delay because it will be very low in a ported enclosure with those specs (2.2 @ 32hz).

Go back into hiding; things were better when you weren't talking out of your ***.

congrats!!! you've tried to disprove me and instead made yourself look like an *** and proved me right

some points...

the comparison is between 12's showing only a max 3 db increase in order to even maintain a semi-flat responce.... so that throws out the possibility of the ported 12's being louder than the 2 15's so if you made another sealed box that could match the output it would have to be MORE peaky than the one you diagramed there

also that ported looks great for rap, throw some rock in it, see how it sounds next to the sealed... theres a 6 db difference in favor of the sealed at 80, shit i wonder what that graph looks like at 90 hz? any higher and it purty much stops all together for the ported while the sealed is still going fairly strong, so yeah if ya only listen to rap go with ur ported there but its not gonna be louder than 2 15's sealed which will have a flatter responce

 

[woodplock7 10+ year member]

intresting... i might go with the 15s but im still not sure if 16 tall for the box will be tall enough to fit em what do you all think? and im sure this thread is helpin some other people out also keep em coming //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[cotjones 10+ year member]

intresting... i might go with the 15s but im still not sure if 16 tall for the box will be tall enough to fit em what do you all think? and im sure this thread is helpin some other people out also keep em coming //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

that depends... if the baffle (the side the subs are mounted in is diagonal then it should be possible, but if its not you aren't going to be able to fit it unless you can get it like an inch bigger, (with 3/4" mdf)

 

[Immacomputer 10+ year member]

congrats!!! you've tried to disprove me and instead made yourself look like an *** and proved me rightsome points...

the comparison is between 12's showing only a max 3 db increase in order to even maintain a semi-flat responce.... so that throws out the possibility of the ported 12's being louder than the 2 15's so if you made another sealed box that could match the output it would have to be MORE peaky than the one you diagramed there

also that ported looks great for rap, throw some rock in it, see how it sounds next to the sealed... theres a 6 db difference in favor of the sealed at 80, shit i wonder what that graph looks like at 90 hz? any higher and it purty much stops all together for the ported while the sealed is still going fairly strong, so yeah if ya only listen to rap go with ur ported there but its not gonna be louder than 2 15's sealed which will have a flatter responce

Are you seriously blind? I said nothing of the difference between the output of the 12s vs the 15s but rather about the comment you made about the SQ going to shit if you go ported. This is just not the case at all.

So wait, a nice response from 30-60hz is only good for rap? What the ****? You do know that this range is the bass range, correct? Your front stage should really be handling the 80hz region and up, not the sub.

I would also bet my system and my car that you would not be able to hear the difference between the sealed and ported enclosure from 55-80hz. The difference in output is so insignificant and the curve is so similar, it would be VERY hard to guess which enclosure you are listening to.

But wait, I wouldn't know that because I haven't listened to my same sub in both sealed and ported enclosures in the same car with the same power playing the same music, have I?

Oh, wait, I'm sorry... I have done all that and the only place I notice a difference was in the lower frequencies. And yes, I listen to all kinds of music. Right now, I'm listening to some Jethro Tull, DragonForce, and Me First and the Gimme Gimmes.

I think you completely misunderstood my post or you're just trying to argue because that's what you love to do. The point was that going ported does not ruin the response or SQ of the driver. It does give a different FR curve and in this case, it's just as flat, if not more so, than the sealed. So please, take your unexperienced and ignorant statements elsewhere.

Oh, and yes, you can fit the subs on a 16" surface. The cutout diameter is 13 7/8" which is perfectly fine for a 16" baffle with no angling needed.