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Old 22nd May 2005, 08:35 AM   #1
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I need to build a bandpass box for a large open area. I will be using 2 JL 15W3V2. It needs to loud. Can any one help. Thanks
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Old 23rd May 2005, 12:53 AM   #2
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Why do you want a bandpass for a large open area? I've only ever heard them sound good in a car.

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Old 23rd May 2005, 01:25 AM   #3
RJ is offline RJ  United States
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An open area calls for a bass reflex (ported)enclosures.
For a bass reflex design try the Dual-chambered;
http://www.diysubwoofers.org/prt/dual_chamber.htm
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Old 23rd May 2005, 02:18 AM   #4
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Old 23rd May 2005, 02:41 AM   #5
RJ is offline RJ  United States
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Ok, Bill grumpled on my ported box.
The only thing I would build for a large open area is a line-array.
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Old 23rd May 2005, 04:36 AM   #6
Ron E is online now Ron E  United States
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Well, it appears nobody here wants to help you, only one person asked you a question and the other suggestions are kind of useless. A double chanber reflex? A line array? grumblemoan? Why even waste time posting if it helps nobody?.

I myself am rather skeptical of posts like yours with no info in them because It seems all too aften they are cross posted on 50 different audio boards and never go anywhere. sometimes 10 different people chime in with good ideas and the OP decides to just use a "recommended enclosure".....

My suggestion is to download some program like WinISD pro, find the parameters for your woofers, enter them in and design a box for yourself. Bring your parameters and your proposed design here and see what happens - people are always more willing to critique than to spend valuable time doing it all for you.
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Old 23rd May 2005, 05:25 AM   #7
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by RJ
An open area calls for a bass reflex (ported)enclosures.
For a bass reflex design try the Dual-chambered;
http://www.diysubwoofers.org/prt/dual_chamber.htm
This design is the hardest to build.

Id stick to the band pass.. But why. ? are you using little power but want lots of bass or have tons of room for a huge box ?
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Old 23rd May 2005, 06:17 AM   #8
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Quote:
Originally posted by RJ
Ok, Bill grumpled on my ported box.
The only thing I would build for a large open area is a line-array.
I didn't mean to; it was a misplaced grump.

Right on with the line array. BTW I like yours. It's red. You got balls. I'd like to see the finished product.
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Old 23rd May 2005, 07:26 AM   #9
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Default sub box

I have already tried several boxes and some we built were very loud. We built a dual 15 4th order that hit hard but they can't handle much power. I needed to know if anyone had a suggestion for anything different. I have tried sealed with the 15in and that didn't cut it. This guy want to be the loudest. I was also going to try the solo-x 18 do you have any input. Thanks for your reply.
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Old 23rd May 2005, 07:26 AM   #10
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Default sub box

I have all the power I need a QSC 3400 I just need to build a box to handle it. Thanks
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