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Line array Project |
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heinrich 
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Joined: 21 February 2007 Location: Calindagan Status: Offline Points: 280 |
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 Posted: 01 June 2007 at 2:19am |
 ok here guys...
its been long that ive been searching for explainations why those 2 low frequency drivers in line arrays are only seen from slots or meaning party covered and partly exposed?
are there optimum measurements for these? |
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.....power is nothing without control....
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BlackCat
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Joined: 13 November 2006 Location: Russian Federation Status: Offline Points: 49 |
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Posted: 03 June 2007 at 9:19am |
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The slots are 1) a kind of phase plug 2) the throat of MF horn.
Such slots are often used in mid- and small-sized designs of LA like EAW KF 730, HK Cohedra etc.
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heinrich
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Joined: 21 February 2007 Location: Calindagan Status: Offline Points: 280 |
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Posted: 03 June 2007 at 2:54pm |
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so are there optimum measurements for this?
or do we still use some sort of software to acquire the optimum size ? |
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.....power is nothing without control....
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login4
Old Croc 
Joined: 03 April 2006 Location: Wales Status: Offline Points: 1552 |
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Posted: 03 June 2007 at 3:03pm |
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TDA, they look like the exact same product as that fame sell, what do they sound like?
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CELTIC SUBSONIC SOUND SYSTEMS
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drbeat
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Joined: 23 April 2007 Location: Chile Status: Offline Points: 2 |
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Posted: 29 June 2007 at 10:27pm |
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hi: Hola a plane is possible with dimensions mas clear thank you
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audiopro
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gingerbiscuit69
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Joined: 23 September 2005 Location: United Kingdom Status: Offline Points: 2540 |
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Posted: 07 August 2007 at 2:50pm |
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one of the companys i work for, use a dynacord cobra4 'line array'. this is a compact system primarily for ground stacking ect...
looking at the data sheets on the website, they dont seem at all impressive. the frequency response is all over the place, they have silly ratings and for the cost arnt at all efficient! to me this is just a compact three way reflex box with lots crammed in. single 15, four mids in series parellel and single comp (top) or tripple comp on waveguide (far). they do sound nice, but id expect something like this to sound a bit more impressive. great to work with too... stacks together and locks with little knobs n dimples, daisychain the NL8's through the tops and plug into the amps patchbay!! 
the 'FARS' have three comps hence not a bad output, but still far from flat. the 'TOPS' have massive upper range dips in response and are only 100db/1w efficient... for something with so many drivers and 'line array' id expect better. the subs amuse me most ... called a 'Planar waveguide bass horn' - what the hell is this!? omnidirectional bass... spl of 101db/1w ... fair enough. response of 30-150hz -10db... bit silly really... from the response it only looks useable to 50hz!!! on their controller settings, the EQ in the 30-50hz is rele high with a Hipass at 30hz! technically makes it flat to 30hz but at the serious lack of power handling. so am i right in saying this isnt too hot a product? just a dodgy folded sub and bad responsed reflex midtop with easy logistics? |
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Mark James
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Joined: 15 January 2006 Location: rig side Status: Offline Points: 5309 |
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Posted: 07 August 2007 at 9:46pm |
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i actualy heard a few planar wave horns this weekend, for a few seconds, not the cobras though just some diy using nexus_3 [mircea bartic] plans available here, they were loaded with some random fanes from some random dare audio boxes so there real suitability is unknown.... howether i was quite impressed overall with them, plenty of pop......
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me so horny me love you long throw
horn loaded for her pleasure |
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tkila
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Joined: 28 January 2008 Location: Mexico Status: Offline Points: 24 |
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Posted: 28 January 2008 at 8:00am |
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how do i upload a picture
Edited by tkila - 28 January 2008 at 8:56am |
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good luck speaker builders
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tkila
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Joined: 28 January 2008 Location: Mexico Status: Offline Points: 24 |
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Posted: 28 January 2008 at 8:51am |
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check my line array    Edited by tkila - 29 January 2008 at 12:49am |
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good luck speaker builders
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Lasse Lukkari
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Joined: 09 March 2004 Location: Finland Status: Offline Points: 615 |
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Posted: 28 January 2008 at 12:45pm |
http://www.speakerplans.com/forum/forum_posts.asp?TID=13167 |
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Mark James
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Joined: 15 January 2006 Location: rig side Status: Offline Points: 5309 |
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Posted: 29 January 2008 at 3:00pm |
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@tkilla [good name by the way]
nice looking boxes there, what drivers? and are there plans about??? |
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me so horny me love you long throw
horn loaded for her pleasure |
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Mircea Bartic
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Joined: 18 February 2005 Location: Romania Status: Offline Points: 2582 |
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Posted: 29 January 2008 at 3:34pm |
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looks like Kappa 12 + LA6CB-MR + P-audio Line array horn + some 1"drivers, PSd-2002 perhaps?
what are the crossover points? |
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general manager & head designer at nexus-acoustics research
http://www.facebook.com/nexus.acoustics.research Ex Nexus_3 |
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tkila wrote: