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would this enclosure combination work?

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=95364
Printed Date: November 30, 2021 at 8:50 PM


Topic: would this enclosure combination work?

Posted By: extacy
Subject: would this enclosure combination work?
Date Posted: July 05, 2007 at 4:47 PM

Okay, I was originally making a bandpass enclosure for a 10" sub ... while having another on the shelf in free air. Until I saw one of the designs on this website which inspired me to think of the box given in the picture. The design in question here is the " Isobaric - Bass Reflex (Compound Loading) " setu

What kind of a box would you classify this  as ... a sealed + bandpass ... or ported ... ?

posted_image




Replies:

Posted By: bellsracer
Date Posted: July 06, 2007 at 12:09 AM

Yup. This box would work provided the parameters are for the proper sub. This is an Isobaric - Bass Reflex Setup with Compound Loading settings. It's design makes for a fairly large box and needs a higher level of fabrication to get this to work right. So long as the speakers are phased with each other, they're fine.



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Never send your ducks to eagle school.
The difference between ordinary and extraordinary is that little extra.
The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.




Posted By: extacy
Date Posted: July 06, 2007 at 3:46 AM

Arite thanks bro.

Would I be better off with this combination. Or to simply make a bandpass enclosure for one subwoofer and freeair the other one ?

Id put both in a bandpass, but since I dont have any midbass I'll be having a lack of sound in 100-150Hz range.





Posted By: bellsracer
Date Posted: July 06, 2007 at 6:52 AM

First off, I'm not your bro... I'm your sis ^-^

This is a rather complex build and it tends to get very big, so I do not recommend this style of box often. It would rather depend on what kind of sound you are looking for... Bandpass boxes are excellent if the box is made for the specific subwoofers only.

Ganbatte ne!



-------------
Never send your ducks to eagle school.
The difference between ordinary and extraordinary is that little extra.
The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.




Posted By: extacy
Date Posted: July 06, 2007 at 7:16 AM

... ahh ... sorry about that dudette lol

Well, yea ... ill build the box for the intended subwoofer ofcourse. 

Jus one thing, you'd recommend making a bandpass for both subwoofers, or running one free air and one bandpass ?





Posted By: zhalverson
Date Posted: July 07, 2007 at 5:07 PM
You don't want to run two subs in different enclosures for sure.  The box you are describing is going to be very difficult to build correctly as well.  You may be better off going sealed or a simple ported design.




Posted By: extacy
Date Posted: July 08, 2007 at 11:01 AM
Ahh yea ... Ive decided to either make 2x bandpass ... or 1x bandpass and 1x sealed/free air depending on the subwoofers compatiability!




Posted By: extacy
Date Posted: July 08, 2007 at 11:02 AM

I jus re-read your post ... so now ... its 2x bandpass for sure :)





Posted By: zhalverson
Date Posted: July 08, 2007 at 12:30 PM
Ok but i hope you know what you're doing because if you're guessing at the dimensions of this thing its going to sound terrible.




Posted By: bellsracer
Date Posted: July 08, 2007 at 11:55 PM

it's not going to sound bad so much as it will live up to it's name, "The Speaker Destroyer"

Bandpass filters the frequencies you would normally hear (in my experience so please no flaming me on this) when your subs are distorting and destroying themselves. By the time you hear the destruction in the subs, it's usually too late to adjust the output and usually it means replacement.

I would just consider going for a ported setup.

Ganbatte ne!



-------------
Never send your ducks to eagle school.
The difference between ordinary and extraordinary is that little extra.
The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.




Posted By: DYohn
Date Posted: July 09, 2007 at 10:34 AM
I cannot recommend that kind of enclosure unless you (1) are very experienced in building enclosures and really know what you are doing, and (2) are trying to compete.  If you want a musical system then I agree with the advice above: build a standard enclosure.

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Posted By: extacy
Date Posted: July 15, 2007 at 9:25 AM

Hmm okay.

I guess I wont be making the box of the pic I posted.

I seriously am not in the mood of a ported box, I want a bandpass ... I wont make it real hardcore on the gain for it so as to be on the 'safe' side.





Posted By: bellsracer
Date Posted: July 15, 2007 at 10:50 AM

I'm sorry, it's not that it isn't a good idea, it is the fact for it's design and amount of work/skill needed to build that one properly is something even experienced fabricators have trouble dealing with. It's drawbacks far outweigh the benefits unless you plan on competing with it in some way (show or SPL).

You basic bandpass should still give what you are looking for without the complicated build. If you keep an eye on your gains and whatnot, you have me backing you up on your project ^-^

Ganbatte ne!



-------------
Never send your ducks to eagle school.
The difference between ordinary and extraordinary is that little extra.
The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.




Posted By: extacy
Date Posted: July 19, 2007 at 2:39 PM

... Im confused.

Major confused.

Not because of the box, but ... of what subs to get. *sigh*

Need to revisit the market to see whats new.






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