PDA

View Full Version : Ported sub box or sealed?!



xtc.thai
13-02-2008, 08:47 PM
Whats better for car audio system?

what difference does it make?

Dray_Templar
14-02-2008, 07:42 AM
I'm a noob in car audio, but as far as i no, ported gives you louder bass, SPL or somthing, and sealed is meant to give you better sound quality, so as far as i no it depends of you just want it to be loud or if you want it to sound sweet, also some subs are designed for a sealed box and others ported and most work well in either. Audio Guru's Please correct me if I am wrong, also interested in hearing what some of you have to say.

tron07
14-02-2008, 08:44 AM
I would just go with seal... easier to get it right.

Most ported box that are poorly made (spec not correct, too small or port length too short) tend to be boomy and noisy.

tron07
14-02-2008, 08:46 AM
I'm a noob in car audio, but as far as i no, ported gives you louder bass, SPL or somthing, and sealed is meant to give you better sound quality, so as far as i no it depends of you just want it to be loud or if you want it to sound sweet, also some subs are designed for a sealed box and others ported and most work well in either. Audio Guru's Please correct me if I am wrong, also interested in hearing what some of you have to say.

ported box can be made for SQ purpose also, but its a lot teadious to do so... if you check out home audio stuffs, most of the bookshelf, floorstanders, subs are in ported box.

integraz
14-02-2008, 09:27 AM
Exactly.

the Difference is that Ported is louder/ more efficient.

Though ported is hard to get right, if you don't make the box properly, a number of things could make the sub sound like shit- hence why people say sealed is for SQ, cause it sounds better, but the reason is because they heard a shittly tuned ported box.

Sealed is easy to make, and is easy to get right/ more forgiveable.

But if you are able to tackle down ported, it is worth it, you get a louder sounding system with no need to add more power.

Also what subwoofer is it? because some subs just don't work in sealed or ported.

cracker
14-02-2008, 05:56 PM
yes i was also wondering the same question....i have the lil booklet dat came wit my sub and i checked the units and it said that ported had a higher number but i dunno what the number meant and wether high or lover was better except that was in feet squared

xtc.thai
14-02-2008, 08:22 PM
well ive made up my mind and i bought myself a very good quality ported box and omg it sounds great!. very punchy but also very loud. very happy with it. was gonna get 2 subs but this 1 sounds so much better than twin 12's. im happy :D

ICACHA
18-02-2008, 07:30 PM
well ive made up my mind and i bought myself a very good quality ported box and omg it sounds great!.

pre-fabricated ported box off the floor of a chain store?


very punchy but also very loud. very happy with it. was gonna get 2 subs but this 1 sounds so much better than twin 12's. im happy :D

please let us know when you've damaged your sub... i need a good chuckle :)

wonder why you didnt read and take in what tron07 had said, i agree 100% with him here...


I would just go with seal... easier to get it right.

ported, so easy to get wrong and damage speakers... but there is more than just the box, you need the right amp also for the ported enclosure or you will damage speakers no doubt about it...

xtc.thai
18-02-2008, 07:55 PM
lol, no not off a chain store, nope havent damaged my sub and yes it maybe easy to get ported subs wrong but the one i have bought for myself works perfectly and sounds just the way i wanted it. and everyone that has heard it thinks that i have a good combination with my amp/sub and box

Dray_Templar
18-02-2008, 08:32 PM
thinks i will go sealed yep yep... 2 x 12" earthquake tremors.. but they won't be in till next month :(

tron07
19-02-2008, 08:03 AM
well ive made up my mind and i bought myself a very good quality ported box and omg it sounds great!. very punchy but also very loud. very happy with it. was gonna get 2 subs but this 1 sounds so much better than twin 12's. im happy :D

lol at off the shelves box....

Not to pour cold water on you, but how much listening experience does your pals have?? Do you know what is cone break up, lead slap, etc is and how they sound??

On the plus side, its not that easy to damage a sub, unless you blast it excessively.....

ICACHA
19-02-2008, 08:31 AM
tuning freq. of port and subsonic filter... thats all you need to know... any more and your brain turns to mush :D

cracker
19-02-2008, 03:33 PM
yeah i got a sealed sub now...i reckon it sounds better i mean...how loud do u want ur bass to be!?

amurray
19-02-2008, 04:12 PM
Working with the option audio subs we found ported are best.. also.. the little prefab sub and ported box.. works REALLY well.. u can buy the box seperatly.. we through all differant types of subs in there.. it sounded awsome with wat ever we put in there.. its tuned for 35 hz i belive

LaZaZaL89
19-02-2008, 09:38 PM
From what ive heard it also has a lot to do with your taste in music?

ie: if you get a good ported box, it works well with slow loud base hip-hop and r&b tracks, however not so great with fast techno, trance, house etc... which is where sealed really excels...

Is there much truth in this statement?

xtc.thai
19-02-2008, 09:45 PM
lol at off the shelves box....

Not to pour cold water on you, but how much listening experience does your pals have?? Do you know what is cone break up, lead slap, etc is and how they sound??

On the plus side, its not that easy to damage a sub, unless you blast it excessively.....

lol do they have to have alot of experience to know what sounds good and what doesn't? you dont have to know that much to know hear/feel the differences

with the music i listen to, i think that its pretty good.

mrwillz
19-02-2008, 10:55 PM
i always had sealed thai

sounds good to me

tron07
20-02-2008, 08:34 AM
lol do they have to have alot of experience to know what sounds good and what doesn't? you dont have to know that much to know hear/feel the differences

with the music i listen to, i think that its pretty good.

If you say so, and you are happy with it :thumbsup:

Cause at the end of the day, its your money and you are going to listen to it.

arverson
21-02-2008, 01:59 PM
sealed for me. making a sealed box is easier when you want to fibreglass your sub on a angle inside the rear quarter panels ;)

if i was willing to lose most of my whole boot, entering spl comps or was very low on amp power to feed my sub/s THEN id go ported.

euro_tr4sh
27-02-2008, 01:05 AM
ported is great for sq... it gives yiou more control over the characteristics of the bass being produced... 35hz is way to high to be tuning a sub box for daily listening, it greatly reduces the bandwidth at which the sub can operate optimally at as a usual high pass for a sub is 80hz, its only playing a 45hz range haha... its well worth investing in a custom built and designed ported box... prefab, ported and sealed boxes are absolutely rubbish, best thing to use them for is firewood, and then they'd probably still fail miserably

tron07
27-02-2008, 08:12 AM
firewood.... FTW!

put in a red sony sub, and you can use it as a hazzard sign/marker too

ICACHA
29-02-2008, 06:27 PM
From what ive heard it also has a lot to do with your taste in music?

dont you mean, how much panadol you can take :p

beeza
29-02-2008, 06:46 PM
Ported.Also fill or even better line the inside if the sub with foam by glue.This will take away the fluffy airy sound and make it more solid sounding.

ICACHA
01-03-2008, 02:52 PM
kidding aren't you? can you scientifically prove that theory?

beeza
01-03-2008, 03:02 PM
kidding aren't you? can you scientifically prove that theory?

No I'm not kidding.
As for 'Scientifically proving my theory',What do U want...a printout of a speedsheet with lots of numbers and equations all over it?

In a drumkit the drummer likes to fill the bass drum up with pillows/towels/foam to get a solider sound.Same thing.

I hope that's enough.We could get into that whole physics of it all if you like :p

Limbo
01-03-2008, 09:06 PM
it depends on the SUb itself
Some subs are designed to work with a ported box whilst others work better with a sealed box. Check the manufacturer's recommendation and it will tell you the optimal size and type of box you need

Dray_Templar
02-03-2008, 08:49 AM
No I'm not kidding.
As for 'Scientifically proving my theory',What do U want...a printout of a speedsheet with lots of numbers and equations all over it?

In a drumkit the drummer likes to fill the bass drum up with pillows/towels/foam to get a solider sound.Same thing.

I hope that's enough.We could get into that whole physics of it all if you like :p

Agreed well known fact.


The kit bass drum may be more heavily muffled than the classical bass drum, sometimes through the use of a pillow or a blanket against the batter head to produce a shorter "thud."
from: http://en.wikipedia.org/wiki/Bass_drum

Drummers also place foam, pillows, or blankets inside the bass drum to reduce overtones.[3]
from: http://en.wikipedia.org/wiki/Drumhead

beeza
02-03-2008, 09:54 AM
Yeah! A very common ghetto way to 'tune' ya bass :)

Dray_Templar
02-03-2008, 11:02 AM
Yeah! A very common ghetto way to 'tune' ya bass :)

it's as ghetto as using Dynamatt (tune your whole car) to make a car sound system sound better lol

beeza
02-03-2008, 11:12 AM
That stuff would be sosick!

tron07
03-03-2008, 08:18 AM
No I'm not kidding.
As for 'Scientifically proving my theory',What do U want...a printout of a speedsheet with lots of numbers and equations all over it?

In a drumkit the drummer likes to fill the bass drum up with pillows/towels/foam to get a solider sound.Same thing.

I hope that's enough.We could get into that whole physics of it all if you like :p

You can use polyfill to fill out the sub box... not glue or foam stuffs... but then you can also make the sub bigger, so you dont need to put polyfill fill it.

beeza
03-03-2008, 10:06 AM
Oh sweet.So that would be better than foam,U think?

euro_tr4sh
03-03-2008, 11:05 AM
Just so you know, i work at one of perths leading car audio stores, and putting polyfill, or dacron in the box is one of the biggest no no's ever for a plethora of reasons... its just a band aid for not building the box right

tron07
03-03-2008, 11:20 AM
Oh sweet.So that would be better than foam,U think?


you can also use deflex pads with polyfills.



Just so you know, i work at one of perths leading car audio stores, and putting polyfill, or dacron in the box is one of the biggest no no's ever for a plethora of reasons... its just a band aid for not building the box right

So you mean those high end home speakers bookshelf or floorstanders boxes that have polyfill inside are daft??

euro_tr4sh
03-03-2008, 09:30 PM
i think you'll find that proper high end home gear (kef, B&O, genesis etc..) do not have poly fill in them, plus a sub and a floor standing mid woofer for home audio are very different drivers... a car woofer moves alot more air, and in the case of one with a vented pole you run a high risk of some fibres getting pulled in and melting on the hot voice coil.... in lamens terms, you'll f**k your woofer