Point source array - Caterpillar |
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tamuks
Registered User Joined: 16 April 2012 Location: zimbabwe Status: Offline Points: 232 |
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gud work there mykey .just out of curiosity can you show us the drivers for theese cabs coz l think u must have made custom horn flares for your coiax 12s loved the piglet to the extent of making mine as for the 12s try making some which u can put on trypoid stands and make the bass cabs spherical as well .can get good market for weddings and commecial functions hey . luv the work looks like u gonna need a nice long flight case for those beautys
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mk2_ginger_biscuit69
Old Croc Joined: 03 November 2008 Location: Brighton Status: Offline Points: 7801 |
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he already has done sphere subs, midtops etc, its a cool looking range!
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''Remember that the object of a subwoofer is to enhance the output of your main speakers, not overpower it''
''Dubstep - an elongated electronic fart'' |
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njw
Old Croc Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2574 |
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How funky would a few of those look hanging around the ceiling of a club painted in a vivid colour, or even better, uv white!, I think you're on to a winner there Mykey.
Edited by njw - 12 May 2012 at 9:53pm |
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Wrek0ne
Young Croc Joined: 10 February 2011 Location: Cambridge Status: Offline Points: 749 |
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Mykey do you have a website up and running at the moment?
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Poll this!
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mykey-
Old Croc Joined: 03 March 2010 Location: ID/UK Status: Offline Points: 6114 |
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mykey-
Old Croc Joined: 03 March 2010 Location: ID/UK Status: Offline Points: 6114 |
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Rawcardo
Registered User Joined: 18 March 2012 Status: Offline Points: 139 |
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i was under the impression that circular bins were the best shape, just that they were hard to make. |
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kevinmcdonough
Old Croc Joined: 27 June 2005 Location: Glasgow Status: Offline Points: 3751 |
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in terms of the acoustics of each individual cabinet (or each individual section within Mykeys 4 speaker one) then yeah, circular ones have a lot of advantages with no internal parallel walls etc. But the problem we initially spoke about comes because of the way the cabs will play together. because he has four speaker sections in a row within this cab, essentially he's making almost a small line array, and there are very specific rules that need to be followed because of the way the sound from each speaker within the cab is going to interact with the others below and above. One of the main rules is that the physical spacing for each driver (centre to centre) should be less than half of the highest wavelength it'll be playing, to stop comb filtering (cancellations). For low and mid frequencies this isn't too much of a problem because the spacing of the drivers is close together compared to the wavelength of those frequencies. But for upper mid and high frequencies, as the wavelength gets progressively smaller and smaller the spacing of each driver is going to get into similar distances to, and then become bigger than, it and problems will start to occur. Line array companies spend significant time and money developing fancy wave guides and horn profiles that (attempt to) fix this and change the HF output from a single point to a complete line all the way down the cabinet so that they remove the idea of spaces between each one, its one of the main problems when designing an LA box. but because Mykey has used coaxial drivers, he has his HF section at the centre of each one and cant (or at least its much harder! ) to do this and so he'll have four individual HF sections with space between them and so will have comb filtering. However he does claim to have at least minimised this using custom horns, and he knows his stuff so I don't doubt there will be something clever happening and it would be nice to get some more details if he is able to share without revealing too many secrets.....(hint hint!! ) k Edited by kevinmcdonough - 13 May 2012 at 8:18am |
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Tony Wilkes
Old Croc Joined: 02 August 2004 Location: West Midlands Status: Offline Points: 4840 |
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It is also worth bearing in mind that comb-filtering in the vertical plane is not so easily noticed as the horizontal plane. Very rarely do we listen to a PA whilst bobbing up and down.
The differences which would mainly be at upper HF would probably not be noticed by anyone who was not specifically listening for them, although no doubt easily measurable. That said I personally would not equip all of my balls with a comp, probably just every other one, but this as Kevin has stated does not take into account what Mykey has done with the wave-guides. Tony Edited by Tony Wilkes - 13 May 2012 at 9:26am |
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www.forteaudio.eu - BMS - db-Mark Processors - Lexon (SAE)
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mykey-
Old Croc Joined: 03 March 2010 Location: ID/UK Status: Offline Points: 6114 |
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my balls are equipped with pussy guides
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Tony Wilkes
Old Croc Joined: 02 August 2004 Location: West Midlands Status: Offline Points: 4840 |
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Yes Mykey you can just see them if you look carefully, look pretty well used to me !!
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www.forteaudio.eu - BMS - db-Mark Processors - Lexon (SAE)
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MarjanM
Old Croc Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7816 |
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Kevin, dont forget that this is point source array. Not Line array. If Mykey use horns with15-20 degree vertical dispersion then it will all be just as it should be.
Very good job there Mykey. Now paint it yellow and put some antennas on the top one. It will be the cutest box assembly ever :-).
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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