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Scoop calculation? |
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Ray666 
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Joined: 12 July 2005 Location: Estonia Status: Offline Points: 81 |
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 Topic: Scoop calculation?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
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Tom Umney
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Joined: 26 February 2004 Location: United Kingdom Status: Offline Points: 4954 |
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Posted: 30 October 2005 at 9:56am |
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Tom Umney
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Posted: 30 October 2005 at 9:58am |
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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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Tom Umney
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Posted: 03 November 2005 at 9:51am |
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No thx for this.
Why do I bother sometimes.
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ceharden
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Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11851 |
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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? |
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Tom Umney
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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 ME 15/300 = kappa 15,ME 15/300LF = Kappa 15LF,
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Ray666
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Joined: 12 July 2005 Location: Estonia Status: Offline Points: 81 |
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Posted: 09 November 2005 at 12:00pm |
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@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. |
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LunchieTey
Young Croc 
Joined: 06 February 2005 Location: Australia Status: Offline Points: 934 |
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Posted: 10 November 2005 at 4:58am |
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I thought the KV2 system used 3 chamber bandpass bass enclosures...?
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Speaker addict
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Ray666
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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) :)
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LunchieTey
Young Croc
Joined: 06 February 2005 Location: Australia Status: Offline Points: 934 |
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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.
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Speaker addict
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tb_mike
Old Croc 
Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744 |
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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 |
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LunchieTey wrote: