Line array Project |
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Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2581 |
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Posted: 01 November 2006 at 9:07am |
How about we play a little with this new technology...
I am surprised that it had not been tackled yet in the DIY zone so, here it is a preliminary line array module designed by me a few days ago it uses: P-audio P10/100MB for midbass, horn loaded (90Hz - 400Hz) Beyma 5G40ND for Mid , Horn loaded (400Hz - 3000Hz) http://prescomaudio.com/pdf/BEYMAPDF/5G40Nd.pdf P-audio WN-D44 on PH14525 Line array horn - for high frequency (3000Hz - 20 000 Hz everything is horn loaded , an everything is in a compact package 700/350/450 mm W/H/D a single unit should be capable of about 126-127 dB continuous from 90-20000 Hz Punishers would take care of the 40-90Hz region what do you guys think ah, and a sim of the midbass section (9 units hung in free space (minimal for line array behavior ) fed with 9x300W RMS ) |
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general manager & head designer at nexus-acoustics research
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7810 |
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Thata looks quite a lot like a project that is in my mind for a longer period.
The difference is mine are with 1x15, 2x8 and 2x1 or1,4. Layout is just the same Regards Marjan |
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Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2581 |
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I like to keep things tiny
I have started exactly with 15" + 2x8"+2x1" but I came across a problem.. 2x 8" drivers would be too far apart (concerning emmision centers ) to sum corectly until the crossover point to the drivers, which would result in comb filtering => not a line array behavior anyway , by using smaller components I am able to reach higher SPL's/ cubic meter of speakers |
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7810 |
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I was considering that. However if i use 2x6 section i am affraid that it wont keep up with the 15 section and dont go low enough safely. (300Hz)
But for sure is better to have more smaller that fewer bigger cabinets. What do you think, can alfa 6 be used? I have problem in getting other products here but Eminence and 18Sound. |
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Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2581 |
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check out the LA-6 CB MR from eminence
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general manager & head designer at nexus-acoustics research
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Dr Burnz
Registered User Joined: 15 August 2005 Status: Offline Points: 100 |
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what dispersion are you aiming to achieve? Would you not get some phasing problems if you were to walk from left to right? I guess which line array would you not get that problem... Looks good though, Very compact!
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Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2581 |
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I would like to achieve about 90-100 degree horisontal dispersion
about the phasing problems:.... well, a perfect loudspeaker is yet to be invented... until then we'll work with the technology we have |
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miniphil
Registered User Joined: 07 July 2004 Location: United Kingdom Status: Offline Points: 71 |
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Sorry to rain on the parade, but this is a bad idea. Line arrays HAVE to be flown, otherwise the sound sh*te.
Designing the flying hardware and making it safe, so that you can adjust it to the nearest degree (at least) is not a trivial job. |
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GO YOU BIG RED FIRE ENGINE!!!
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Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2581 |
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nobody said anything about them not being flown
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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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miniphil
Registered User Joined: 07 July 2004 Location: United Kingdom Status: Offline Points: 71 |
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Sorry to rain on the parade, but this is a bad idea. Line arrays HAVE to be flown, otherwise the sound sh*te.
Designing the flying hardware and making it safe, so that you can adjust it to the nearest degree (at least) is not a trivial job. |
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GO YOU BIG RED FIRE ENGINE!!!
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moray james
Registered User Joined: 07 September 2005 Location: Canada Status: Offline Points: 141 |
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wondered if you had seen the Beyma comp driven line array drivers? WL5, WL4 and WL3. Will run from 800Hz, up to 20KHz. Regards Moray James.
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moray james
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Mircea Bartic
Old Croc Joined: 18 February 2005 Location: Romania Status: Offline Points: 2581 |
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I've seen them, but they are a bit expensive , and do not offer any benefits when compared to the P-audio combination
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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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