Scoop calculation?
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Category: Plans
Forum Name: Other plans
Forum Description: Discussion / Questions about all the other plans
URL: https://forum.speakerplans.com/forum_posts.asp?TID=2961
Printed Date: 27 March 2026 at 11:09am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Scoop calculation?
Posted By: Ray666
Subject: Scoop calculation?
Date Posted: 30 October 2005 at 3:49am
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Hy everyone- i think i have an idea to use a double scoop with two
elements in one box , but i don`t know how to calculate the scoops can
anyone help me with the problem? and i`m not quite sure what drivers
should i use- can anyone ecsplayne the secrets of Scoops |
Replies:
Posted By: Tom Umney
Date Posted: 30 October 2005 at 9:56am
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http://members.aol.com/xxbase80a/doppelrutsche.2.15/bau.html - http://members.aol.com/xxbase80a/doppelrutsche.2.15/bau.html JBL 4520 double 15 inch scoop design.
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Posted By: Tom Umney
Date Posted: 30 October 2005 at 9:58am
Also I just added the double 15 inch scoop design I just scanned in, text is a little hard to read but I got a pretty crappy scanner.
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Posted By: Tom Umney
Date Posted: 03 November 2005 at 9:51am
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No thx for this. Why do I bother sometimes.
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Posted By: ceharden
Date Posted: 03 November 2005 at 11:16am
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@Toxic: Maybe if you answered the question rather than just posting plans??? @Ray666: Treat the double scoop as if it were two singles stuck together just missing the panels inbetween. A scoop bin is a rear loaded horn the output of which consists of the sum of the direct radiating cone and the horn. The horn predominates at low frequencies (up to 80-100Hz I think, not a scoop expert) and the direct sound from the cone above that. The disadvantage with them is that there will always be points at which the horn and direct sound will cancel out. To design/simulate consider them as a horn without a rear chamber and ignore the direct sound. Have you looked at the super-scoops plans on this site and Rogs section in the FAQ about them? |
Posted By: Tom Umney
Date Posted: 04 November 2005 at 12:14pm
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@ceharden: I thought it was an easier way for him to make scoops from plans instead of trying of him trying to calculate the scoops and make his own version of double 15 inch scoop. Fane 15XB works well in scoops and so does JBL 2226, and also Eminence Omega Pro 15. Theres some drivers that can be used in the plans above. Or the Eminence models the Eminence scoop suggests, I can find the equivalent to what those old models are. http://kytary.muzikant.cz/doplnky/eminence.htm - http://kytary.muzikant.cz/doplnky/eminence.htm ME 15/300 = kappa 15,ME 15/300LF = Kappa 15LF,
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Posted By: Ray666
Date Posted: 09 November 2005 at 12:00pm
@Ceharden : Thanks for the tip ceharden. but what programs should i use
to simulate the box? all what i can say about the box is that its going
to be like kv2 with two scoops , but not with the kv2 closed front.
-think about it and imagine the picture.... mighty.... ain`t it @toxic :your plan is allready well-known for everybody and it didnīt helped me at all  im planing something much more different , but thanks anyway for your time. |
Posted By: LunchieTey
Date Posted: 10 November 2005 at 4:58am
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I thought the KV2 system used 3 chamber bandpass bass enclosures...?
------------- Speaker addict |
Posted By: Ray666
Date Posted: 13 November 2005 at 11:55am
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i trie to think of a way to make the two chambers to two scoops :) and i think im pretty close to it i think (and hope) :) |
Posted By: LunchieTey
Date Posted: 14 November 2005 at 1:29am
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Well it's gonna have to be a whole lot bigger to be horn loaded. ------------- Speaker addict |
Posted By: tb_mike
Date Posted: 19 November 2005 at 8:56pm
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For a slightly shorter horn,and 3dB more power handling,it isnt worth it IMAO.I think youd agree! Mike.e |
LunchieTey wrote: