Looking For Folded Horn Sub Plans
- Thread starter nniwelt
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tuba?
i assume you've seen this? http://www.billfitzmaurice.com/plans/product_info.php/products_id/14
i assume you've seen this? http://www.billfitzmaurice.com/plans/product_info.php/products_id/14
An externally hosted image should be here but it was not working when we last tested it.
meant to post a reply to this yesterday but never got the chance
if you're wanting to go down the 12" route (and many say this is the key to good bass - small easily movable cone with high excursion creating a piston effect) then you can't go far wrong with the LAB Sub
full details can be found on the prosound forum where it was born -
http://srforums.prosoundweb.com/index.php/f/3/0
however i will warn you the woodworking is a b*tch, and they are best run upto 80Hz max with something like an HD15 above
which brings me to the next site to look at www.speakerplans.com
this site contains plans by Rog Mogale
18" & 15" horns plus bandpass boxes and mid tops there's also a forum there
if you're wanting to go down the 12" route (and many say this is the key to good bass - small easily movable cone with high excursion creating a piston effect) then you can't go far wrong with the LAB Sub
full details can be found on the prosound forum where it was born -
http://srforums.prosoundweb.com/index.php/f/3/0
however i will warn you the woodworking is a b*tch, and they are best run upto 80Hz max with something like an HD15 above
which brings me to the next site to look at www.speakerplans.com
this site contains plans by Rog Mogale
18" & 15" horns plus bandpass boxes and mid tops there's also a forum there
qi
Regarding KF-940 it sounds really complicated, however I'm a carpenter and I've done CNC routing before. But still it's a lot of work doing that box.
I do have picture of 940 exposed and I was thinking of doing that ]cenventional way without CNC just using regular material and methods.
It sounds like you know this box well, do you know where I can get more info, like detailed pictures and measurements?
What about DCS2 sub? Can you compare it to KF-940?
Regarding KF-940 it sounds really complicated, however I'm a carpenter and I've done CNC routing before. But still it's a lot of work doing that box.
I do have picture of 940 exposed and I was thinking of doing that ]cenventional way without CNC just using regular material and methods.
It sounds like you know this box well, do you know where I can get more info, like detailed pictures and measurements?
What about DCS2 sub? Can you compare it to KF-940?
What about horn subwoofer plans? I only saw one site www.spekerplans.com There's www.loudspeakerbuilder.com but they only make boxes not sell plans.
nniwelt said:
Actually, I gleaned that info from their website. That is the extent of my knowledge.
I am sincere in my request to know more about the insides of the KF-940.
Whatever pictures / details you have would be appreciated.
Have you seen the plans for the Jensen Imperial?
While these plans have been "super-sized" for a 24" driver, you could scale them for a 12" by dividing everything by 2...
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Greets!
One more time..... you can't scale a cab this way and expect similar performance! Anyway, Steve's design is enough different from the original that he shouldn't be referring to it as an 'Imperial' IMO: http://www.highefficiencyloudspeakers.com/user/Imperial_Build-in.jpg
GM
One more time..... you can't scale a cab this way and expect similar performance! Anyway, Steve's design is enough different from the original that he shouldn't be referring to it as an 'Imperial' IMO: http://www.highefficiencyloudspeakers.com/user/Imperial_Build-in.jpg
GM
GM
Yes and no...
I am just using simple math to scale a "super-sized" design back to its original state.
The plans you posted are the originals, and known to be flawed and very difficult to work with.
Actually the website you reference confirms this.
Steve's plans are easier and more "buildable" IMO
Yes and no...
I am just using simple math to scale a "super-sized" design back to its original state.
The plans you posted are the originals, and known to be flawed and very difficult to work with.
Actually the website you reference confirms this.
Steve's plans are easier and more "buildable" IMO
Norbert
Yes, thank you.
At a quick glance, it looks "doable". The expansion rate almost looks linear -- (consisting of expanding straight sides).
The two curved folds could be made of thin veneer, back-filled with "great stuff" (pvc foam) for rigidity and damping (essentially what they describe)
The initial flare is at a perpendicular plane to the main flare, but also appears to be linear (expanding straight sides)
It looks like a single driver may be an option, also.
But the thing is a monster (approx 5' x 3' x 3') -- not easily portable (unless you look like THE ROCK)
Yes, thank you.
At a quick glance, it looks "doable". The expansion rate almost looks linear -- (consisting of expanding straight sides).
The two curved folds could be made of thin veneer, back-filled with "great stuff" (pvc foam) for rigidity and damping (essentially what they describe)
The initial flare is at a perpendicular plane to the main flare, but also appears to be linear (expanding straight sides)
It looks like a single driver may be an option, also.
But the thing is a monster (approx 5' x 3' x 3') -- not easily portable (unless you look like THE ROCK)
qi said:Norbert
Yes, thank you.
At a quick glance, it looks "doable". The expansion rate almost looks linear -- (consisting of expanding straight sides).
The two curved folds could be made of thin veneer, back-filled with "great stuff" (pvc foam) for rigidity and damping (essentially what they describe)
The initial flare is at a perpendicular plane to the main flare, but also appears to be linear (expanding straight sides)
It looks like a single driver may be an option, also.
But the thing is a monster (approx 5' x 3' x 3') -- not easily portable (unless you look like THE ROCK)
The eaw cabinet is simple.The fancy foam may help resonance of panels. The curvings wont help it in its passband.
The series of parabolic/conical expansions approximate an exponential or hyperbolic flare. Probably 4-8units required for stated sensitivity and cutoff.
Marketing ploys use a cover of mystical magic to make a unit appear advantagous to buy. Its probably similar to the labhorn. Easier to make too!!
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