sealed or ported

[RollinRemz05 10+ year member]

Which do you prefer and what are the differences. Thanks.

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[danteBirosel 5,000+ posts]

First off, the smart and best thing to do, is do a SEARCH.

Like all the other answers you will recieve. Everyone will say PORTED.

dB

 

[PSturmer 10+ year member]

yeah dude there are enough articles on each type, we dont need to repeat it again

 

[BigEM 10+ year member]

Ported>Sealed in Loudness!!!!! no questions asked.

later, em

 

[kpozr2 10+ year member]

what type of sub???

 

[budahbuddy803 10+ year member]

there are too many variables to answer tihs question. I enjoy SPL subs in ported but when it comes to strict SQ i love the sealed box. But it depends on too many things to answer that broad of a question.

 

[supraman1379 10+ year member]

Sealed box = ok loud + better SQ

Ported box = **** loud + not so good SQ

 

[SlammeD_SiR 10+ year member]

in my sub i got no output in a sealed it wass nasty

 

[thadman 10+ year member]

it depends on the subwoofer, generally ported subwoofers are louder 6dB around the tuning frequency and roll off around that creating a peaky and boomy response.

Room gain more accurately matches the roll-off of typical sealed boxes to create the flattest possible frequency response

It all comes down to its parameters though

 

[bri487 5,000+ posts]

ported ftmfwbiatch. btw, a properly built ported box has the potential to sound pretty darn good.

 

[jeepintn 10+ year member]

ported ftmfwbiatch. btw, a properly built ported box has the potential to sound pretty darn good.

x2 ftw

 

[Ctminime 10+ year member]

id i take the sq of my ported over a sealed any day.... just cuz i can actually hear what is sposed to sound good. haha i dont think that i could go back to a sealed box if i wanted to.... there is no way haha

 

[yne721 10+ year member]

Now we will start with :
Sealed enclosures : A SEALED enclosure will be the smallest,and is the simplest of enclosures and will have good low frequency extension, but might not have the best low frequency extension. If space is limited.

and its a good choice for SQ fans (Sound Quality).

PORTED enclosures (Bass Reflex) : A PORTED enclosure will generally have a better low frequency extension for a given response shape,but would require a larger enclosure. If you made the enclosure as small as the sealed enclosure, but ported it to gain the low frequency response, the output would deviate from the desired flat response.

Ported enclosures are slightly more difficult to design than a sealed enclosure. When using a sealed enclosure, it is difficult to be so far off as to risk damaging the woofers. In any type of enclosure, the woofer relies on the enclosure for damping. If there is insufficient damping, the woofer's cone will move significantly more than it should. The ported box will provide virtually no damping below the port frequency, all of the control will be provided by the woofer's suspension. Below the tuning (port) frequency, it is possible to cause damage to the woofer well before power levels approach the maximum power ratings of the woofer.

common tunning frequencies :

Sound Quality : 20 up to 28 Hz.

Sound Quality Loudness : 30 up to 35 Hz

Sound Pressure LeveL SPL : 40 up to 80 Hz (test tones are played rather than normal music, to avoid Low frequencies, which damages the speaker).

Its commonly used for competition propose. and not everyday driving.(unless you like listening to test tones for everyday driving).

BandPass enclosures (Single Reflex): Bandpass enclosure can sound good and give you a flat response,but most of the bandpass enclosures(in the market), are not designed for a flat response, this means that they are built to produce a large peak at some frequency from 50 to 60 Hz, these enclosures will work well with Rap, but generally they dont sound good with other types of music.

if u use a banpass enclosure. it should be designed specificaly for your speaker.

P.S : its not always recommended.

hope that this info will help many to understand the different types of enclosures.and which type will perform better for their propose.

-zAK

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[helotaxi 5,000+ posts]

The generalization that tuning in the 20's will result in SQ is BS. Depending on the sub, tuning that low will result in garbage for both output and accuracy. The alignment of the box in relation to the sub are a better indication. A Butterworth alignment will result in the smoothest response. This is the size and tuning that is given by the ported box equations running around out there. Tuning lower than this will result in muddy bass and a loss of output. Tuning higher will give a peak in the response. This peak is what makes higher tunings better for SPL. What equates to a "high tuning" is totally dependant on the sub.