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Designing a dance stack..

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efinque View Drop Down
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    Posted: 15 September 2017 at 10:08am
Sup Speakerplans forum,

I thought I'd post this here too for additional advice.

Presumably most of you already know what a dance stack is... anyway, I've been designing these over the course of years but due to lack of resources I haven't been able to build one.



As for some background info; I've built a 15" scoop, and a 186/1850 which we couldn't get functioning due to the driver being broken. 

Originally posted on DJF (link to thread)

Any thoughts?

Thanks in advance,

-ef
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 10:38am
Frankly that stack doesnt make much sense. Two different types of frontloaded bass horn, and then a scoop, what would be the reasoning behind this contraption?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 10:41am
Crossover points make no sense either. Why have a scoop if you plan to play it only 250hz and up? 😐
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 11:20am


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Post Options Post Options   Thanks (0) Thanks(0)   Quote efinque Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 11:32am
Originally posted by bob4 bob4 wrote:

Frankly that stack doesnt make much sense. Two different types of frontloaded bass horn, and then a scoop, what would be the reasoning behind this contraption?

Ehm.. that's a good point which I didn't take into account.

But scoops really do well in the midrange. (edit : sorry)

Originally posted by bob4 bob4 wrote:

Crossover points make no sense either. Why have a scoop if you plan to play it only 250hz and up? 😐

Those can be fine-tuned later on. And in my experience scoops require a substantial amount of power in the low range. But I did make an anecdote in DJF about notch filtering the scoop to make it omit the "punch" range (50-150Hz) which is sort of experimental but worth trying I guess.


Edited by efinque - 15 September 2017 at 11:37am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 11:49am
No offense, but the way you have planned your stack suggests that you don't fully understand how and why this type of stacks are designed. Putting random boxes in a heap will not magically yield a working dance stack. Each box is a well thought compromise that is designed to work in synergy with the rest of the stack.

Maybe read some more and go back to the drawing board again after a few months?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote efinque Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 12:02pm
Originally posted by bob4 bob4 wrote:

No offense, but the way you have planned your stack suggests that you don't fully understand how and why this type of stacks are designed. Putting random boxes in a heap will not magically yield a working dance stack. Each box is a well thought compromise that is designed to work in synergy with the rest of the stack.

Maybe read some more and go back to the drawing board again after a few months?

Then of course there's the Funktion One Dance Stack-range which offers a very similar solution (4-way system with 2 types of bass bins) but from what I've gathered they're pricey, around 50-100k depending on the setup.

I calculated that this system could be built for, say, 10k..

EDIT : And I did consider the lens horn too but their availability is, should I say, questionable.


Edited by efinque - 15 September 2017 at 12:03pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Risc_Terilia Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 12:32pm
Originally posted by efinque efinque wrote:

Originally posted by bob4 bob4 wrote:

Frankly that stack doesnt make much sense. Two different types of frontloaded bass horn, and then a scoop, what would be the reasoning behind this contraption?

Ehm.. that's a good point which I didn't take into account.

But scoops really do well in the midrange. (edit : sorry)


Scoops do not do really well in the midrange.  Something like a MT121 12" horn will be suitable here.  


Edited by Risc_Terilia - 15 September 2017 at 12:47pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 12:33pm
bob4 is right. and what you have come up with has pretty much no similarity to a fk1 dance stack.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 12:50pm
Originally posted by cravings cravings wrote:

bob4 is right. and what you have come up with has pretty much no similarity to a fk1 dance stack.


Er, I don't see anywhere that F1 was mentioned - the design is clearly influenced by the original RLA / GSA style dance stacks, with rear-loaded mid-range horns and FLH subs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Risc_Terilia Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 1:02pm
Originally posted by toastyghost toastyghost wrote:

Originally posted by cravings cravings wrote:

bob4 is right. and what you have come up with has pretty much no similarity to a fk1 dance stack.


Er, I don't see anywhere that F1 was mentioned - the design is clearly influenced by the original RLA / GSA style dance stacks, with rear-loaded mid-range horns and FLH subs.

Originally posted by efinque efinque wrote:

Then of course there's the Funktion One Dance Stack-range which offers a very similar solution (4-way system with 2 types of bass bins) but from what I've gathered they're pricey, around 50-100k depending on the setup.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote efinque Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2017 at 1:50pm
Originally posted by toastyghost toastyghost wrote:

Originally posted by cravings cravings wrote:

bob4 is right. and what you have come up with has pretty much no similarity to a fk1 dance stack.


Er, I don't see anywhere that F1 was mentioned - the design is clearly influenced by the original RLA / GSA style dance stacks, with rear-loaded mid-range horns and FLH subs.

Yes, it's true that the stack concept is pretty much copied from the aforementioned companies. The bottom-end sub is basically a modified W-Bin (I have the plans somewhere..)
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