banpass vs ported

[texaschevyryder]

i have a band pass and i have a ported box the ported sounds good but would that sould be even better in a banpass box jus wanna know

 

[TahoeGoBoom]

huh? are you asking which is better?
if its built right, the bandpass would sound better. it would play more frequencies in the spectrum, and give a cleaner bass as opposed to a more sloppy bass you get from a ported box.

 

[blueflamed03]

ported, IMHO

 

[DJTricky]

sealed

 

[thumper_ehhhhh]

banpass if the back of the speaker is packed with insulation and sealed. The front needs to have the correct size ports. You can expearement with different sizes of wood with holes. I have had several different boxes over the years Now if I was going to make one I would make banpass forsure.

 

[TahoeGoBoom]

sealed

 

[blueflamed03]

for best 'sound', I'd do sealed as well....

 

[TahoeGoBoom]

sealed is just safe sound. A *correctly* built bandpass will blow away a sealed box.

 

[JKmotorsports]

A bandpass enclosure will only allow the sub to reproduce efficiently within a certain frequency range (a certain band of frequencies to pass through the port), hence the term "bandpass". For the best accurate acoustical reproduction and power handling, a sealed enclosure is best because of the low group-delay/transient response. Biggest drawback is that subsonic/very low frequecy response is harder to achieve.
A ported enclosure can be tuned to the vehicle's transfer function to get the best possible spl. You can also get more extended low frequency response from a ported enclosure vs a sealed design.
A bandpass enclosure can be built for high efficiency to play a narrow frequency range, or it can be designed to play at a wider frequency range, but at the cost of efficiency. If not constructed properly with correct chamber volumes and port variables, in most cases it will sound much worse than a simple sealed box AND produce lower spl.
So when you ask what sounds better, it all depends on your intentions for your system. Do you want SPL, SQ, or a good medium? For SPL, a properly constructed bandpass enclosure tuned to the subs' Thiele-Small parameters might be best. A sealed enclosure is better for sound quality, and a tuned ported box will yield better spl than a sealed enclosure and a wider frequecy range than a bandpass.

 

[WrenchGuy]

A bandpass enclosure will only allow the sub to reproduce efficiently within a certain frequency range (a certain band of frequencies to pass through the port), hence the term "bandpass". For the best accurate acoustical reproduction and power handling, a sealed enclosure is best because of the low group-delay/transient response. Biggest drawback is that subsonic/very low frequecy response is harder to achieve.
A ported enclosure can be tuned to the vehicle's transfer function to get the best possible spl. You can also get more extended low frequency response from a ported enclosure vs a sealed design.
A bandpass enclosure can be built for high efficiency to play a narrow frequency range, or it can be designed to play at a wider frequency range, but at the cost of efficiency. If not constructed properly with correct chamber volumes and port variables, in most cases it will sound much worse than a simple sealed box AND produce lower spl.
So when you ask what sounds better, it all depends on your intentions for your system. Do you want SPL, SQ, or a good medium? For SPL, a properly constructed bandpass enclosure tuned to the subs' Thiele-Small parameters might be best. A sealed enclosure is better for sound quality, and a tuned ported box will yield better spl than a sealed enclosure and a wider frequecy range than a bandpass.

What did you do copy and paste that from your saved explanation list?...lol I was gonna be a little more brief but that sums it up.

STICKY THAT!

 

[JKmotorsports]

lol, yea sometimes I just get into what I'm typing and try to make sure what I'm explaining makes sense.

 

[blueflamed03]

sealed is just safe sound. A *correctly* built bandpass will blow away a sealed box.

true, at 3x the space as well...a sealed box will sound better any day of the week...a ported box will be louder, and sound better than a bandpass.

 

[DJTricky]

my whole system is all sealed

2.3cubic feet per chamber, 2 subs per chamber 3 chambers per side. all equal.

im acutally building a new project it involves 4 15 inch ported and a 2 door lol

 

[TahoeGoBoom]

im acutally building a new project it involves 4 15 inch ported and a 2 door lol

sounds like the blazer power audio just built for spring break nationals..
the box was big enough to live in. we used to joke with our boy that when his girl kicked him out he would live in the box. If i ever get over there i'll try to snap some pics.

alot of this "which box" crap depends on the car. in an SUV, build what you want, regardless it'll be loud. same with any hatchback. when you start gettin into cars with trunks, bandpass is the best way to go. I'd be willing to bet JK has a bandpass in his CTS since them caddys are well insulated and wouldnt be as loud any other way. iirc, he actually does have a bandpass.

in the hoe, if you want loud, build ported, if you want pretty, build a bandpass. the dB difference wouldnt be very high. if you want to keep your trunk space, build sealed. regardless, dont use a prefab. they suck.

 

[blueflamed03]

please don't take this the wrong way, but it's really not about which car.

It's how do you want it to sound.

Want SQ and a good driver system, sealed.
Want peaky, and don't mind the room, bandpass
want large output within a certain freq. range, ported.

Also, depends on power and the woofers. Some just don't have the suspension for ported applications.

 

[BigBlackBurban]

please don't take this the wrong way, but it's really not about which car.

It's how do you want it to sound.

Want SQ and a good driver system, sealed.
Want peaky, and don't mind the room, bandpass
want large output within a certain freq. range, ported.

Also, depends on power and the woofers. Some just don't have the suspension for ported applications.

^^ I gotta agree with you on this. I also think the type of music one listens should be a determining factor as to which type of box to choose.

 

[TahoeGoBoom]

I have to disagree. I've built ported boxes that would play anything, and the woofer makes a difference, yes, but so does building. its all experience with building. We've built boxes for mmats p3.0's, both ported and bandpassed (note: these speakers are not recommended for a bandpass *mmats says this*) and the bandpass is easily 2-3 dB's louder, and clearer cleaner bass.

vehicle type matters as well.. how can you honestly tell me that if you put a ported box in a truck vs a bandpass with a cut thru, that the ported box will be louder. especially in newer cars that are meant to keep the noise out of the cabin. granted, this is an SUV, so it would make no difference, but still.
imho, with this app, go ported,tuned to 40-45 hertz and it would be the best bet. i'd be willing to bet that he listens to mostly rap, and wants it to be as loud as possible.

 

[blueflamed03]

ported boxes won't play anything, like below tuning frequency.
Tune at 33hz, play a 20hz test tone and see what happens.
It is in the build. I'm not arguing build. I am stating what a consumer wants as far as sound, and space requirements.
Bandpass Mmats is that woofer sealed on the front side?

vehicle type matters as well.. how can you honestly tell me that if you put a ported box in a truck vs a bandpass with a cut thru, that the ported box will be louder.

but those are not identical vehicles. One is basic truck, one is cut thru.

 

[MOBmentality]

I have 3 12jlw3s in a tiny ass sealed wedge behind the 3rd row

You can sit in the front seat with 7 people in the truck and still not even see a single speaker.....

and now only does it slam everything from tay dizm to trick daddy and blow hair everywhere and bounce change out of the cupholder.... when it needs too....

it plays every thing from panic at the disco.. to old school guns and roses.. you cant beat the tight response of a seal box .. AND YOU DEFINITELY cant beat the size.

 

[blueflamed03]

^^^ agree, sealed FTW!