ONLY if the subwoofer's motor structure can perform in the vented box... a cheap sony will not do. A properly designed sub will definitely benefit from a ported enclosure.

 

Proper sub in a proper ported enclsoure I feel will always be thebetter. Size limitations and box building problems is what happens most of the time.

 

Just not true. First off, no enclosure has an 'infinite flat response'. Second, ported boxes WILL have a very sharp rolloff below the tuning frequency. Much steeper than the rollloff of a sealed box. Third, ported boxes will have much more significant group delay, both amplitude and slope, which make for less accurate bass. Fourth, ported boxes will have power handling problems below the tuning frequency, that sealed boxes just don't have.


As John said, ported boxes can be louder, at certain frequencies. Sealed boxes will, however, have smoother, more predictable response, and will play louder, lower, than ported boxes...this is especially true in the car, where cabin gain usually almost matches the roll off of a sealed box. I've posted the graphs for Tim's eclipse subs, over in that thread. Here's a link to the attatchment:

https://www.tamparacing.com/forums/a...se-12-freq.jpg

The blue line is sealed, the orange is ported, and both are given the same cabin gain simulation. But more importantly, frequency response is really not the issue with ported boxes and sound quality...its group delay, phasing, and the resulting transient response. All will be better with a sealed box.

All this assumes proper box construction. So, we won't consider how much more difficult it is to build a 'proper' ported box, or how much more forgiving a sealed box can be.

Toby

 

hey toby thanks alot for the help, i got one sub just to hear.. minus the amp tuning, the sub sounds amazing, it hits PERFECT.. you rock.. rep for you

 

Now Expain A Bandpass Box- Best Of Both Worlds And My Favorite Box!!!!!

 

For a spread from 30 to 100hz The group delay will NOT be an issue unless you have a crappy crossover or an inability to tune.


Cool people use ported. Leave sealed to the ricers.

 

ha. 2 diesels 12s a bazooka amp and an aluminum wing!

 

+1

Who wants an extra gain in a a range of +/-60ish hz if they are going for accuracy? That isn't accurate, the big hump in the frq response shows how it isn't as accurate. Flat frq response = accurate.

 

If someone is building their own box, and need to ask which box is better, ported or sealed, then they have an inablilty to tune a sub box.

Ports are a low budget way to gain a few db and if done right, can sound very good. Rare to see (or hear) a well tuned system or ported sub box.

The other way is to buy more powerful stuff, or more of everything.
I have a sealed box, actually, 2 of them. So I guess I went "the other way".

 

FYI Too Boomy means its not accurate. Hence the "TOO". If you play and like boomy music, you cant get too boomy, so that is great if everything you listen to sounds like sss sss booom sss sss booom.
Remember, you can tune a sealed box as well, bigger box=lower bass. Add a cubic foot and see where the bottom end of the sealed box ends up.