Sidebar

does box size matter for tuning ?

Reply
  • 7
    Participant count
  • Participant list
Jump to latest
big scott

big scott

blazin low, and loud
3,611
0
edgewood, md
Im going to make a sealed box to find my residence frequency for my truck.

and was wandering if I made 2 boxes say 1 2 cubes and other 3 cubes would the frequency be different?

Meaning does box size matter in this situation ( just for finding res. Frequency of interior )

Also say it 42hz would I tune my ported box to 42hz?

im going to build a ported box for my 4 12" subs.

or what would I tune to ?

I would like say 25/30 hz to 63hz , is that possible.

Just trying to figure all this out before I start my ported box.

thanks.

o ill be useing one of my 12" sq hds2 subs for checking.

Click to read more...
 
I don't have the answers to all your questions, but I can tell you box volume is a factor in tuning. If you have the same sized port and used that in three different sized boxes they'll be tuned to three different frequencies.

Check out this page and scroll down to the Slot Port Length Calculator:

Subwoofer Enclosure Calculators, Parallel, Series, Port Length and Volume

You can see how different permutations affect tuning.

Also, I think you'd be better off with a sealed box when looking for the resonant frequency because of its flatter response.

 
I don't have the answers to all your questions, but I can tell you box volume is a factor in tuning. If you have the same sized port and used that in three different sized boxes they'll be tuned to three different frequencies.
Check out this page and scroll down to the Slot Port Length Calculator:

Subwoofer Enclosure Calculators, Parallel, Series, Port Length and Volume

You can see how different permutations affect tuning.

Also, I think you'd be better off with a sealed box when looking for the resonant frequency because of its flatter response.
Click to expand...
He's going for something completely different man. He is making a sealed box to find the resonant frequency of his vehicle so he can tuned his ported box either to the resonant frequency to get a really high spl score, Or tune low enough to get a flat response after factoring in cabin gain. Lets say your peak frequency is at 50 hz, if you tune high like 40hz or something, your car will sound very peaky. However if you tuned to 30hz, it'll shift the frequency response to a lower octave allowing you to peak lower and sometimes achieve a more flatter response.

Also that calculator is not comprehensive at all, there are many displacements you need to account in. Use torres box calculator instead. For your ported box inf your other thread, the port area is very small, that loss of sound quality can be attributed to port compression.

Ported boxes get a lot of flack for not having a flat response, its because a lot of people dont know how to make a flat response ported box. They just shove a sub in a ported box and think it'll work fine. While in fact theres many factors of the box you can manipulate to achieve a very flat, loud and very good sounded ported box based on the parameters of each sub.

 
I get what he's trying to do, but i misread. I thought he was talking about making a ported box for sweeping.

I appreciate the info. I would like to know more about finding the ideal port area for a given sub, but i don't want to hijack OP's thread

 
He's going for something completely different man. He is making a sealed box to find the resonant frequency of his vehicle so he can tuned his ported box either to the resonant frequency to get a really high spl score, Or tune low enough to get a flat response after factoring in cabin gain. Lets say your peak frequency is at 50 hz, if you tune high like 40hz or something, your car will sound very peaky. However if you tuned to 30hz, it'll shift the frequency response to a lower octave allowing you to peak lower and sometimes achieve a more flatter response.
Also that calculator is not comprehensive at all, there are many displacements you need to account in. Use torres box calculator instead. For your ported box inf your other thread, the port area is very small, that loss of sound quality can be attributed to port compression.

Ported boxes get a lot of flack for not having a flat response, its because a lot of people dont know how to make a flat response ported box. They just shove a sub in a ported box and think it'll work fine. While in fact theres many factors of the box you can manipulate to achieve a very flat, loud and very good sounded ported box based on the parameters of each sub.
Click to expand...
ya thanks very much.

and thats what i need/want to find out.

so will the box size matter?

and would there be a difference in resonant frequency with 2 different size boxes ?

 

---------- Post added at 11:36 AM ---------- Previous post was at 11:35 AM ----------

 

residence frequency //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
Click to expand...
that what you get when relaying on spell check .. using a tablet...

 
I don't have the answers to all your questions, but I can tell you box volume is a factor in tuning. If you have the same sized port and used that in three different sized boxes they'll be tuned to three different frequencies.
Check out this page and scroll down to the Slot Port Length Calculator:

Subwoofer Enclosure Calculators, Parallel, Series, Port Length and Volume

You can see how different permutations affect tuning.

Also, I think you'd be better off with a sealed box when looking for the resonant frequency because of its flatter response.
Click to expand...
Weren't you just asking about knowing how big a box needed to be for a speaker?

Sent from my draconis using Tapatalk

 
ya thanks very much.and thats what i need/want to find out.

so will the box size matter?

and would there be a difference in resonant frequency with 2 different size boxes ?

 

---------- Post added at 11:36 AM ---------- Previous post was at 11:35 AM ----------

 

that what you get when relaying on spell check .. using a tablet...
Click to expand...
typically speaking, the bigger you go in sealed, the lower the "tuning" is

 
Im going to make a sealed box to find my residence frequency for my truck.and was wandering if I made 2 boxes say 1 2 cubes and other 3 cubes would the frequency be different?

Meaning does box size matter in this situation ( just for finding res. Frequency of interior )

Also say it 42hz would I tune my ported box to 42hz?

im going to build a ported box for my 4 12" subs.

or what would I tune to ?

I would like say 25/30 hz to 63hz , is that possible.

Just trying to figure all this out before I start my ported box.

thanks.

o ill be useing one of my 12" sq hds2 subs for checking.
Click to expand...
Make a 1.5cuft sealed box or 2 cuft.

Different sizes will not necessarily change much, but you might get lower response to amp power, but it wont be noticeable.

Will you be using a term lab?

Or just ear?

Sent from my draconis using Tapatalk

 
Weren't you just asking about knowing how big a box needed to be for a speaker?
Sent from my draconis using Tapatalk
Click to expand...
Yes, but knowing a range of acceptable box sizes based on cone size isn't the same as figuring out what the ideal size is using the T/S parameters.

Besides, that doesn't affect the validity of what I wrote (though as mentioned earlier it's not what OP was asking; I misread).

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.
Previous topic Next topic

Similar threads

P
Does this box plan check out?
These are decent budget subs. The box design isn’t bad at 5 cubes for these, but I’d drop it down just a little and raise port tuning up to 32...
3
1K
Enclosure Design & Construction
SlugButter
SlugButter
B
Does More Box Volume = Louder?
My subs unload at full tilt @ 28 hz, They are in 3.69 cubes net tuned to 34 hz. 4 - 8's. Big box and big power.
7
2K
General Car Audio
Bobbytwonames
Bobbytwonames
Diesel_67
Does Anyone Know Anything About This Subwoofer?
Thanks everyone for the replies! Like I said in my first post I’m not wanting to be loud, I just would like to have a little extra bass.. I like...
12
725
Subwoofers
Diesel_67
Diesel_67
TheBigPilferer
Forum does not seem very active... And hello
It's always leaned that direction. Not sure how cheap you can really get anything done these days. Deadening and custom mounting...
10
834
Forum News, Bug & Usage Issues
hispls
hispls
Bass so loud it HZ
Does Fur or leather on the roof have a large impact on spl
You're not going to know until you test with a meter. Typically even carpeting a box as opposed to painting is going to lose a few tenths.
3
1K
General Car Audio
hispls
hispls

About this thread

big scott

big scott

blazin low, and loud
Thread starter
big scott
Joined
Location
edgewood, md
Start date
Participants
Who Replied
Replies
11
Views
854
Last reply date
Last reply from
Umbra
Share thread
IMG_0632.jpg

just call me KeV

    Apr 19, 2024
  • 0
  • 0
IMG_0629.jpg

just call me KeV

    Apr 19, 2024
  • 0
  • 0

Latest topics

Top
Menu
Home
Refresh