ported @,28,29,30,31,32,33,34.35??

[60ndown 10+ year member]

what's the decideing factor about where to port / tune an enclosure? or where should i port an enclosure for an rl-p 12 if i decide to try one? trunk mounted sub 4 door car sq first with lotsa L.all music types.available space 36x18x24 but would like to keep some of it for cargo! an im not trying to get free box desighns :boobies: ,i am willng topay the $20 for a good one im just curious about why some tune to 30 and others to 36? etc if your one a doze guys that sells sub desighns here pm me or post with why i shud use your desighn and i'll paypal yo some cash! im good with tools so i'll build it!

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[RandyJ 10+ year member]

They chose that because that will aid them in acheiving the SQ they want for thier particular listening habbits.

If you listen to soemthing like hard rock which usually doesnt have a stage below 40Hz, why tune to 25Hz and acheive a peak at 30-31Hz (depending on box size)? You would want to make it to where your system was strong at the desired location in the frequency spectrum, and low 30'z when listening to rock wouldnt be doing so.

Since you listen to all music types, I would probably go around 35, a safe medium between low tuning and high tuning. Give you reposnse with rock and lows enough for nearly all rap/raggae(SP?).

 

[80INCHES 5,000+ posts]

i agree with nooblet....if u want more output then u would tune higher...imo the highest i would tune and still be able to get some lows is 40hz..thats the most

but if u want a box design pm me

80

 

[60ndown 10+ year member]

why tune to 25Hz and acheive a peak at 30-31Hz (depending on box size)

??the box is tuned to 25 but peaks at 30-31?? explain that a bit would ya.if a box is 'tuned ' to 20 will it peak at 25?

 

[Raven 10+ year member]

Hey, you're that guy from the Decware forums! Welcome!

Anything that needs to be said has been. Tune it to what you listen to. I mistakenly tuned my enclosure too low (30hz) for metal and it peaks LOW, where I'd rather have it hit a little harder.

So, like N00blet said, I'd aim for the mid 30s range.

EDIT: An enclosure peaks about 3 to 5 hz above the tuning frequency in a vehicle. I would believe this has to do with the high resonance frequency of a standard car cabin.

 

[Harrison486 10+ year member]

Like the others have said, most people decide the tuning frequency of their enclosures based on what they want out of it. If someone is going for a lot of SQ, they tune really low (like 20-39), if they want a mix of SQ and SPL, they tuned a little higher (30-35), and anything higher is mostly for SPL and competition type boxes.

In addition, people tune their boxes to the type of music they listen to. Rap hits a lot of lower notes, so people tune their boxes lower, while for example, people who listen to rock sometimes like to tune a little bit higher.

As others have said, since you listen to a multitude of types of music, your best bet would be to tune around 35 hz.

 

[XtrmAudioCncpts 10+ year member]

what size sub? 12" i would got with 32-34hz and for a 15 i would go with 28-30hz

 

[JimJ 5,000+ posts]

Hey, you're that guy from the Decware forums! Welcome!

There's a few of us on here that are over there...the few, the proud...

 

[audioholic 5,000+ posts]

If you listen to soemthing like hard rock which usually doesnt have a stage below 40Hz, why tune to 25Hz and acheive a peak at 30-31Hz (depending on box size)? You would want to make it to where your system was strong at the desired location in the frequency spectrum, and low 30'z when listening to rock wouldnt be doing so.

IMO tuning a box should not be based on the music type you listen to, as that can/will make incorrect assumptions about music genres, and ignores the tuning needs of the actual driver used. Tuning for a response peak in the low 40's would make for a rather peaky response with most subs, even/especially for alot of types of rock music. How the front stage is set up (speakers used, power, xover points/slopes, etc) would also affect where I tuned for sound quality response. Music type is way way down my list of considerations, if on it at all.

 

[Raven 10+ year member]

It is true that tuning frequency is also quite dependant on, well, everything else that isn't music preference. But to be quite honest, very few can make a ported enclosure that sounds good across all frequencies, music types, and with front staging. You can spend months designing a box that could or could not be the ideal enclosure, because it's only ideal on paper.

 

[Rattlebrain 10+ year member]

Hey, you're that guy from the Decware forums! Welcome!

Thought that name sounded familiar.

I got a question about ports. (Please keep in mind I have never built a ported box.) I hear people asking what is the QF of their port. What would that matter. I ask that in the sence that people say, (example only) "I have a 5Qf box with a 2.0QF port." Person 2 says "well, My box is 4.5QF with a 2.5QF port. My box will kick your boxes azz."

If a person tunes a box to certain frq. What signifacance is wanting to know what the volume of the port is to the other person?

I hope that question makes sense. I think I know the answer but I want to hear what others have to say.

 

[audioholic 5,000+ posts]

It is true that tuning frequency is also quite dependant on, well, everything else that isn't music preference. But to be quite honest, very few can make a ported enclosure that sounds good across all frequencies, music types, and with front staging. You can spend months designing a box that could or could not be the ideal enclosure, because it's only ideal on paper.

Designing a good sound quality vented box is not that complicated.