Forums - Build the Perfect WO

Circlomanen

Ex Member

Re: Build the Perfect WO
Reply #30 - 08/20/05 at 00:51:50

What about a straight WO. If one only wants to use it at home it doesnt have to be 36 x 36 x 13,5 inches, since it doesnt have to fit in a car. It could be straightend out and become 30 x 50 x 13,5 inch where the drivers are at the bottom and the mouth at the oposite side. Sure it will be ineffective use of the internal volume but to me thats less inportand than the SQ.
It would be nice to not have those turns and bends and angles.

??? ??? ??? ??? ??? ???

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J_Rock Ex Member	Re: Build the Perfect WO Reply #31 - 08/20/05 at 01:12:03 can you really build straight horns? DOn't they need to have an increasing rate of expansion?
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Circlomanen

Ex Member

Re: Build the Perfect WO
Reply #32 - 08/20/05 at 01:27:07

Quote:

can you really build straight horns? DOn't they need to have an increasing rate of expansion?

Of course the horn must have an increasing rate of expansion but there doesnt have to be any bends on it.
Straight as in not queer...... not bent I mean.
Just a long gradualy expanding tunnel going from the compression chamber in a straight line towards the mouth.

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DirtDawg Ex Member	Re: Build the Perfect WO Reply #33 - 08/20/05 at 01:51:02 Straight horn? I'll bet it works pretty well.
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gexter

Ex Member

Re: Build the Perfect WO
Reply #34 - 08/20/05 at 02:09:39

[quote author=Circlomanen link=1121529118/30#36 date=1124497627]

Straight as in not queer...... not bent I mean.
. [/quote]

Is that a joke? ??? because I am laughing :)
And if it is not, Whoops! :-/how terrible of me

Does not the bends help eliminate the High freq content that may be there?
Of course less than 45 degrees would be nice

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DirtDawg Ex Member	Re: Build the Perfect WO Reply #35 - 08/20/05 at 03:31:09 Hey gexter, You're right about hi freqs in a SHARP bend - they "stumble over themselves and get lost". Look closely again at the Imp SO pic. The first 2 turns are right angles with no expansion. I believe that acts as a low pass filter of sorts.
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gexter

Ex Member

Re: Build the Perfect WO
Reply #36 - 08/20/05 at 04:07:02

Sorry DirtDawg I must be blind!
All I see is all horn starting at the bottom of the K slot. I think the filter is in the behavour of the driver in relation to the K slot and and its interaction of the front wave out and into the horn
( the sum of the unique air flow)

If you smoothed everything out in the WO and it was a hard reflective surface you lose the simplicity and some of the flexibility in the design, In the bass version anyway.

You would require damping in the Chamber that loads the horn to take care of some of the nasty sounds before you load it into the hard smooth reflective horn.

just a thought and again just a feeling

Feel free to call me nuts everyone else does!
Thats why my wife runs the people side of our home based business! and I just do my regular job.

PS you guys are cool!!!

Too bad Johannes thread disappeared there was a lot of inventive thought there.
I figure even the worst idea has the possiblility of some merit.
Hows that for poltical double speak! Grin

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« Last Edit: 08/20/05 at 15:41:50 by gexter »

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Circlomanen

Ex Member

Re: Build the Perfect WO
Reply #37 - 08/20/05 at 16:47:10

Quote:

Straight horn? I'll bet it works pretty well.

WHOOOOOOOAAAA!!!! Now I have to take a long and realy cold shower!!!

Thats a bit much just upp front like that. Hey Dirtdawg, you should post a warning in advance before you post something like that. Thats definitly tripple X rated.

Quote:

Is that a joke? Huh because I am laughing Smiley
And if it is not, Whoops! Undecidedhow terrible of me

Yes Gex, thats was a joke. I hope no one got offended. Humour is quit diffrent in diffrent parts of the world.

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« Last Edit: 08/20/05 at 16:55:11 by Circlomanen »

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Circlomanen

Ex Member

Re: Build the Perfect WO
Reply #38 - 08/20/05 at 16:54:19

Quote:

Does not the bends help eliminate the High freq content that may be there?
Of course less than 45 degrees would be nice

Since the WO is part bandpass box it should not be any hugh problem. The WO already has a quite wide frequency responce, being a BP, and I think the smooth straight version should be a lot more smooth sounding in the highbass and midrange.
Thats my guess.

Quote:

If you smoothed everything out in the WO and it was a hard reflective surface you lose the simplicity and some of the flexibility in the design, In the bass version anyway.

Flexibility??

Johannes

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DirtDawg

Ex Member

Re: Build the Perfect WO
Reply #39 - 08/20/05 at 17:59:50

[quote author=DirtDawg link=1121529118/30#39 date=1124505069]

Look closely again at the Imp SO pic.
The first 2 turns are right angles with no expansion. I believe that acts as a low pass filter of sorts.
[/quote]

gexter,
What I'm talking about here is only maybe 4 or 5 inches of non-expansion, but it has a right angle in that distance and it should stop a lot of HF content. Of course with a Sub Only version the content you might want to minimize is in the 80Hz to 200Hz range. This probably won't help with that range, but maybe you could run this box parellel with a full range speaker without a complicated crossover to waste power. "Still Rainin', Still Dreamin' " >>> Hendrix

I feel like I'm in the wrong forum.........

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« Last Edit: 08/20/05 at 18:03:32 by DirtDawg »

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DirtDawg

Ex Member

Re: Build the Perfect WO
Reply #40 - 08/20/05 at 18:11:09

[quote author=Circlomanen link=1121529118/30#41 date=1124552830]

Hey Dirtdawg, you should post a warning in advance before you post something like that. Thats definitly tripple X rated.

[/quote]

Hey Circlomanen,

You are warned! Almost every time I stick my head in these Decware forums I get "excited" about something. Lately I've needed several sawdust bathes. Skip the cold shower.

P.S. I wasn't the first to post that titillating image.

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« Last Edit: 08/20/05 at 18:13:33 by DirtDawg »

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gexter

Ex Member

Re: Build the Perfect WO
Reply #41 - 08/20/05 at 19:51:14

Johannes - Remember that I said I have trouble getting some ideas across sometimes, mostly because I may have not put enough thought in them.
I intended simplicity because it is easy to build without curves and all the little things a few of us are doing to the design.
As far as flexibility I seem to have lost that thought.

Dirtdawg - thanks for the explaination.

I just completed my Circlomanen flare today. Now I have to fill the caverns with foam after the glue dries.
its one freaky complicated animal with all the little adaptations on top of the original 24 X 24 Mod.

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« Last Edit: 08/21/05 at 04:07:25 by gexter »

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Circlomanen Ex Member	Re: Build the Perfect WO Reply #42 - 08/21/05 at 07:44:01 This is what I had in mind when speaking of a straight WO. Quote: I just completed my Circlomanen flare today. Now I have to fill the caverns with foam after the glue dries. its one freaky complicated animal with all the little adaptations on top of the original 24 X 24 Mod. Pics?? "Circlomanen flare"!
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gexter Ex Member	Re: Build the Perfect WO Reply #43 - 08/21/05 at 23:06:04 rough edtion One http://tinypic.com/awvvcj.jpg rough 2 with the flare not completely done but you get the idea http://tinypic.com/awvx1y.jpg I have not the time to finish and try it yet with the partial "Circlomanen Flare"
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Circlomanen Ex Member	Re: Build the Perfect WO Reply #44 - 08/22/05 at 04:45:13 Nice! I Think that should make a lot of difference. You might want to narrow down the throat a bit. 20-22 mm worked very good for me. I think the way the cable crosses the throat area can disturbe the airflow and create turbulense. Seeing forward to some listening impressions. Johannes.
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