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 ;)

:signs16::ban:

[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!:adminpower:

[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.

http://i23.photobucket.com/albums/b379/DJTricky/IMG_3356-1.jpg

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! :D

[TahoeGoBoom]

you'll never see anything sealed in any of my cars. but i'm an SPL guy, so theres the difference.
and what the hell song plays at 20 hz?

as far as the mmats, uhhh, iirc, theyre sealed on the back side, but reversed, with plexi, and wires reversed, so technically theyre sealed on the front. if that makes sense.

the reason i love bandpass, its loud, acoustic, and pretty...
http://i238.photobucket.com/albums/ff154/untouchablezx2/l_f09f13f6e62848a7bcf5961698203070.jpg
http://i238.photobucket.com/albums/ff154/untouchablezx2/l_f8d669c149444adab10c1d6d294fa19d.jpg

this is prior to getting new wires for the speakers. they look like crap in this pic..

[blueflamed03]

plenty songs play below 33hz.....

personal prefernces I guess, I can't stand bandpass, sealed for me

[TahoeGoBoom]

I suppose your right. It's all personal preference. I just don't like the sound I get from a sealed box. But that's just IMO

[bowtiefreak]

I've always been a fan of sealed, seemed to be the best over all range for a full range of music. I have no system in this truck, all my past stereos were crammed into a S-10 regular cab. I managed to get to twelves in there and it was loud IMO. the only competition I did in it was either 139 or 141 DB, not too bad I guess for a rookie at the time.

[Max]

I've had a few well built ported enclosures that changed people's opinions of a ported system, still like sealed more than anything since I'm over the hair trick bullshit. I like hearing my music. The 4 ported 15's with 1000rms/ea in my acura was ridiculous tho...140db+ is just obnoxious.

[96ProCompTahoe]

i like my sealed box. hits good and clean with my usual XM listenings.

[DJTricky]

See!!!!! I am not alone :cheers::hands:

conformity is key :worship:

join us and experience the difference :signs6:

with this being said continue http://i23.photobucket.com/albums/b379/DJTricky/smileys/hairtrick.gif

[WH0DAMAN]

I've built many of all the different types but prefer the sealed just because it's a smaller package. I do enjoy making the bandpass enclosures because they are a little more involved and cooler looking.

Here is a sealed one I am building for a 68 SS Camaro that we are restoring. It's in the fit up stage so it has to come back out and be sprayed with Lizard Skin. The plexi on the front is being covered with blue Illusion film and back lit to match the blue lights on the Alpine PDX amps.

[TahoeGoBoom]

See!!!!! I am not alone :cheers::hands:

conformity is key :worship:

join us and experience the difference :signs6:

with this being said continue http://i23.photobucket.com/albums/b379/DJTricky/smileys/hairtrick.gif

i like spl too much to go sealed. lol

[blueflamed03]

oh you can have SPL sealed. :D

[JKmotorsports]

i like spl too much to go sealed. lol

I hit 151.5db with a sealed enclosure and I didn't even even have my truck set up for SPL.
I built a selaed enclosure for one of my friend's 01 Accord for three 12" subs and it hit 150.1db on the dash.

[DJTricky]

i was pushing the 170's with my 12 10s in a sealed box

[thumper_ehhhhh]

thats some serious db levels. I was happy when I saw 130 db's on my system but thats with only 535watts of amps and only 2 jbl subs. 200 watts to the subs only the rest for mids and highs. Thats more than enough for me.

[blueflamed03]

i was pushing the 170's with my 12 10s in a sealed box

mic in the port?

[Max]

mic in the port?
:laughing1: louder than the Gates bronco and shit.

[blueflamed03]

I've seen 170's, in port wars :D

[DJTricky]

lol mic right between the sub "v" like the shape of my box is kind of a v. So the mic is right in the middle. Up on the dash i do 158.64. Lol

[blueflamed03]

158.64 Termlab, legal?

[DJTricky]

yes.

[TahoeGoBoom]

well either way, the question was PORTED or BANDPASSED. you all fail. lol

since were off topic anyway, anyone know what meade hits?

[thumper_ehhhhh]

since were off topic anyway, anyone know what meade hits?

Ummmmm baseball bats, ummmmmmm boxing gloves, ummmmmm that tire iron you have beside your drivers seat. I dont know I give what made hits?

[JKmotorsports]

Ummmmm baseball bats, ummmmmmm boxing gloves, ummmmmm that tire iron you have beside your drivers seat. I dont know I give what made hits?

SPL (sound pressure level) wise, measured in decibels.
I don't recall Meade's latest measurement.

[thumper_ehhhhh]

ahhhhhhhhhhhhh ok. Heck my db meter only goes up to 130 db and i know i hit that lol. If I ever reserect my system I guess i will need a higher readout one huh

[Max]

SPL (sound pressure level) wise, measured in decibels.
I don't recall Meade's latest measurement.

Mid 150s last I heard. Pretty obnoxious that's for sure.

[TahoeJim]

Half a lifetime ago I used to compete in NACA and IASCA events with some limited sponsorship by Precision Power, Orion, MB Quart and Nakamichi......old school classics.

Tried dozens of boxes, all which I custom built for the vehicle, the drivers ,etc.....ported, early bandplass, sealed and some weird folded horn designs. For my system I was going to live with daily, sealed and partitioned every time. It sounded more accurate.

[BigRed96]

ok SEALED!!!!!!!! ++++++++20!!!!!!!!!!!

[clean454]

its all personal preference and trial and error... anyone heard of Steve meade designs, the guy with the 20k watt tahoe with 4 18's or his friend with the 30k watt excalade with 8 18's, these guys go big or go home,

check out this video http://www.youtube.com/watch?v=veBR01pIejE
or heres steves webcite alot of good info on this cite http://www.stevemeadedesigns.com/home/

oh and just when u thought ur tahoe pounded check this forum out my inspiration http://www.stevemeadedesigns.com/board/index.php?showtopic=53645

[blueflamed03]

personally know Steve, great guy.

[BlueTahoe2001]

Have been thinking of adding to my system soon! Called several Audio shops and was told that sealed will not have the sound that the ported box will.

Since, I am just looking for a good mild system I am going to soon add a Sealed box and new 2 channel amp!

[clean454]

personally know Steve, great guy.

ive met him a few times hes really knows his stuff

[blueflamed03]

Have been thinking of adding to my system soon! Called several Audio shops and was told that sealed will not have the sound that the ported box will.

Since, I am just looking for a good mild system I am going to soon add a Sealed box and new 2 channel amp!
well depends on what your looking for too...sealed has benefits, and downfalls comapred to ported, and vise versa.