file is this a form of rear load horn scoop?

11 years 2 months ago #3658 by levyte357
Replied by levyte357 on topic is this a form of rear load horn scoop?

Jake_Fielder wrote: this design is far more "scoop" than some of the "scoops" you talk about anyway.


You mean like HOG, RX18, S118, Superscooper, Shortman..

Right you are squire.. I guess everyone will switch from those to this one then, because its "far more scoop"...

Tony, thats what you've been doing wrong all these years, instead of producing well built, efficient cabs, they should have been more scoopish...

\"When in Vegas, do as the vegasians do\".

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11 years 2 months ago #3659 by deadbeat
Replied by deadbeat on topic is this a form of rear load horn scoop?
Gentlemen, please.

No idea what you're all talking about, to me, a scoop is a rear loaded horn with curved baffle, hence the name (based originally on the double 15 D55). Over time this has been eroded to mean any old rear loaded horn.

But I'm busy typing up some points that one could borrow from such designs (as Tony has said, people doing hifi are much more adventurous...).

Good day,

[url=\"http://users.ece.gatech.edu/~mleach/beraneklaw.html\"]Beranek\'s law[/url]
\'bits of ply round a driver\'

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11 years 2 months ago #3663 by jake_fielder
Replied by jake_fielder on topic is this a form of rear load horn scoop?
Lev im talking about Shortmans mini"scoop". THERE IS NO SCOOP!

Now enough of this jibberish / gobbledegook

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11 years 2 months ago #3664 by levyte357
Replied by levyte357 on topic is this a form of rear load horn scoop?

Jake_Fielder wrote: Now enough of this jibberish / gobbledegook


Agreed.


\"When in Vegas, do as the vegasians do\".

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11 years 2 months ago #3671 by deadbeat
Replied by deadbeat on topic is this a form of rear load horn scoop?
Part two

Read the entire thing. If you need me to paraphrase one of his findings into laymanspeak, I will oblige. He explains reflectors, curved horn mouths, line arrays, why ply is reccomended, and all sorts of other information.
http://fullrangedriver.com/forum/viewtopic.php?id=91

[url=\"http://users.ece.gatech.edu/~mleach/beraneklaw.html\"]Beranek\'s law[/url]
\'bits of ply round a driver\'

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11 years 2 months ago #3677 by tony.a.s.s.
Replied by tony.a.s.s. on topic is this a form of rear load horn scoop?
Regarding the term 'Scoop bin', does anyone know the origin of the term. I can understand why people call it a scoop, but as we know, it's not a technical name. And for the not so well informed, the sound does not roll out of the bottom by virtue of its shape.

Peace and goodwill to all speaker builders

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11 years 2 months ago #3681 by nickyburnell
Replied by nickyburnell on topic is this a form of rear load horn scoop?
Would it make any difference if the curve was left out?

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11 years 2 months ago #3684 by deadbeat
Replied by deadbeat on topic is this a form of rear load horn scoop?
The curve is just there to approximate the expansion of the horn, (if you unfolded a scoop it would be an approximation of a horn), so if you left it out the mouth of the horn would have negative expansion before. However, you can in turn approximate the curved panel into a sectional curve (If I am not mistaken, the RX18 uses a sectional curve).

But on the origin of the term 'scoop', I've always thought it was created when people saw the original JBL D55's curved panel, and therefore any rear loaded horn with a curved panel was called a scoop, which was corrupted to mean any rear loaded horn. Exactly who came up with the term, I don't know...

[url=\"http://users.ece.gatech.edu/~mleach/beraneklaw.html\"]Beranek\'s law[/url]
\'bits of ply round a driver\'

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11 years 2 months ago #3687 by mykey
Replied by mykey on topic is this a form of rear load horn scoop?

Deadbeat wrote: That's not a transmission line.

That's a Hi-Fi rear-loaded horn (no, them hi-fi folks don't use scoops). They usually fit fullrange drivers by the likes of Fostex, E J Jordan, Coral and Lowther, all of which are small 5-8 inch things that sound absolutely beautiful at home. That looks to me like a Fostex reccomended design, or some other one. Note the stepped bottom - these cabs are usually ridiculously heavy and stable, kind of like compressed ASS cabs.

like this <A id=the ="return fitsIn;"> </A>
The MauhornEdited by: mykey

Anyone got any ply?

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11 years 2 months ago #3688 by deadbeat
Replied by deadbeat on topic is this a form of rear load horn scoop?
Mykey, those Lowthers... I looked at the price list and...well....[img]smileys/smiley9.gif

On these types of t-line/horn speakers:
(most "horns",
including the Frugel-Horn are actually hybrid TL/horns. Below a given frequency the
mouth is not large enough to damp the pipe resonances giving undamped TL action.
Above this frequency the mouth becomes large enough to provide the horn damping and
you transition to a horn loading.)

copied from frugel-horn.com
</font>

[url=\"http://users.ece.gatech.edu/~mleach/beraneklaw.html\"]Beranek\'s law[/url]
\'bits of ply round a driver\'

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