It can be converted into the biamplifier drive system by changing the internal connection. The challenge for kv2 in building a large point source system for audiences of 50,000 people plus, was to reproduce the low mid energy that certain line arrays provide, though the summing of multiple. Dual 12 3way 3600watt powered large format line array. The ttl33 wp is a compact, wide dispersion, 3 way passive line array module that offers the highest performance from a small size line array. At first a set of expressions for straight line arrays is developed, including the directivity function, polar response, quarterpower angle, onaxis and offaxis pressure re sponses, and twodimensional pressure field. Just as line array took over from pointsource clusters over 20 years ago, martin audios revolutionary awardwinning multicellular loudspeaker array mla technology is reinventing the way loudspeaker arrays are configured and controlled combining unsurpassed audience coverage. What does it really mean when a company rates their speaker as 8 ohms, or 4 ohms. The jbl vrx928la is a lightweight, compact 8 twoway line array speaker system designed for use in arrays of up to six units.
The line array speakers are designed to allow easy rear access for maintenance work. The models are based on theoretical line sources, but the estimates obtained agree quite well with measurements taken on reallife line arrays, particularly those from the latest generation of loudspeaker systems designed specifically for line array applications. Modern line arrays have been used at large scale events since the mid eighties. Kv2 audios philosophy has always been to embrace the principles of point source speaker system design to provide optimum sound quality and coverage for applications and audiences of all sizes. Line array speaker setups are commonly used to deliver sound to live audiences. Every so often a new technology emerges that overtakes previous technologies and in time replaces them. Kla series active line array loudspeakers loudspeakers. Galileo galaxynetwork platform leopardcompact linear line array loudspeaker lyonlinear line array loudspeaker ultrax20compact wide coverage loudspeaker ultrax40compact loudspeakers usw112pcompact subwoofer. An2775 compact line array celestion bass reflex front horn design goal the project was to create a compact line array using small full range drivers. The line array is far too big a thing to set up in the same way, and once its set up you dont really want to have to move it, so you need to be sure that the positioning is right, the height is right, the horizontal angling is right, and most of all it that the array takes up the optimum jshaped curve to distribute sound evenly to. Karrays unique loudspeaker solutions karray unique.
I was also very interested in line arrays as the concept always seemed like a good idea. Point source speakers, vertical line arrays and column speakers each have a valuable place in the toolbox of designing sound systems for houses of worship. Without getting too technical, a vertical line array allows sound waves to constructively interfere with each other so that they can send sound waves farther than singlesource loudspeakers, in a directional pattern. Complete package of line array plans to build their professional quality boxes. Line arrays of loudspeakers are often employed to provide increased directivity, generally in the vertical plane. Back in the 90s, celestion put together a comprehensive guide to designing and building your own cabinet, the cabinet handbook.
If you are considering building a pair of mclas i recommend buying at least 50 speakers to allow you the freedom to reject one or two for quality reasons andor to have a replacement driver to set aside. Dual 12 3way 3600watt powered large format line array speaker. To take an example, for a 4m line array, we get transitions to far field at about 2m at 100hz, 24m at 1khz and 242m at 10khz, while these are more like 10m at 100hz, 100m at 1khz and m at 10khz for an 8m long line. Furthermore a linearray like any speaker has the bafflestepproblem. At first a set of expressions for straightline arrays is developed, including the directivity function, polar response, quarterpower angle, onaxis and offaxis pressure re. After bob gardams comment on breaking the line i decided to give a quick go of the hypothetical scenario i had proposed in my reply.
When two theories predict phenomena to the same accuracy, then the one. Incorporating legendary evengineered transducers, crossovers and patented waveguide components, the compact and highly efficient twoway designs deliver high spls, extended high frequency response and linear lowfrequency extension. The cbt 200la1, with constant beamwidth technology, represents a breakthrough in pattern control consistency and coverage options, utilizing complex analog delay beamforming and amplitude tapering to accomplish superior, consistent coverage without the inconsistent vertical. Line array speakers line array system, jbl products. Powerful touring systems with the ability to precisely and independently control each element of the array eliminating noise pollution and providing continuous, even coverage and featuring a compact design which allows sound to exit instantaneously without resonance. Generally speaking thats what makes them different from the conventional speaker systems. It can be ground stacked, subwoofer stacked, pole mounted, or flown. This would make the sweetspot rather small so this would make the system a onepersononly setup, not very hospitable. The al123ab is a single line array 3way speaker enclosure that is designed to be either flown or ground stacked using four or more units in a vertical array. Line wall mounting kit part number asf20022 each 816 x o line wall mounting kit comprises the following parts. But not an actual line array speaker that can produce the actual line source theories, cylindrical, expanding wave. Retrieved 20170325 adamson shooter software electrovoice laps jbl vertec line array calculator meyer sound mapp online pro eaw kf730. Name language size date advanced line array design with laps ii.
As a rule of thumb, for equal onaxis sound pressure levels one has to use twice the number of line array cabinets compared with the number of hornloaded cabinets in a traditional system. The impedance of a loudspeaker coil is generally quoted for a frequency of 1 khz. A thorough analysis of your environment helps ensure a system that will capably serve your congregation for years to come. A speakers impedance rating should be one of those genuinely useful specs, but you cant always trust them. The 12 speaker articulated line array provides 180 degrees. In a nutshell, a line array is a column of speaker cabinets designed to collectively function like one large speaker. It can be converted into the biamplifier drive system by. This is instead of the spherical wavefront emitted from a point source. Design guidelines for practical near field line arrays. May 04, 2015 a line array pa system features a number of identical or nearly identical loudspeakers arranged in a vertical line. A set of mathematical expressions to analyze the performance of loudspeaker line arrays is provided. The murphy corner linearray mcla is a new type of line array loudspeaker system that i have designed to meet my own requirements for reference monitor loudspeakers with sufficient output to also serve as the sound reinforcement system for my band.
Retrieved 20170325 products soundvision presentation. The tla is a substantial, transmission line speaker capable of handling the full power and majesty of orchestral music. The theory behind line arrays was first published by harry olson in 1957 and was initially used to develop column loudspeakers which are line arrays. The subwoofers have dual scanspeak 23w aluminum cone drivers.
Celestion design, develop and manufacture premium guitar speakers and bass speakers, as well as highquality professional audio loudspeakers and compression drivers for sound reinforcement. The kla series brings the power and sophistication of a line array system into an easytouse product significantly redefining the line array product category. Harman jbl vtx v25 line array with d2 dualdiaphragm driver technology duration. Pure line array theory is based on pure geometry and the thought experiment of the. In short, the geometry of realworld audio line arrays as used in public address systems can only be modeled approximately by line array theory, and only in the 100400 hz range. A solution would be to build a curved array a sort of banana shape but that would only be ideal for one distance, that of the radius of the array. Long held as the exclusive domain of the largest venues and touring companies, line array has finally become affordable to everyone thanks to seismic audio. Seismic audio cla2x5 compact 2 x 5 line array speaker with titanium compression driver padj band live sound by seismic audio in stock. Asf20022 816 x o line wall mounting kit the 8 to 18 module wall bracket has a large wall bracket and a similar u bracket and collar attached to the bottom of the array. This article develops the principles behind the line array theory for a complete understanding of what line arrays are. The rcf hdl 6a is the ideal choice for line array speaker systems where fast and easy setup is a must. Line array speaker vs point source speaker audiogon. The system is designed to be easily scalable from few modules for medium and small theatres to full size arrays. Unless you are a speaker manufacturer without one, whats not to like.
Beyma line array project page this model is the result of an extensive and intense research of every single constituent part of an electrodynamic loudspeaker, rethinking the basics and taking care of every detail, to withstand the. Read on to get an insiders look at loudspeaker impedance spec rating and the marketing behind it that you wont read anywhere else. The goal is to have great sound dispersion while maintaining a flat response curve that would dip into the low end spectrum while maintain a respectable high end, with no accompanying hf drivers. Constant beamwidth technology line array column loudspeaker with eight 50 mm 2 in drivers. With its simple lift, click and play approach, kla can be deployed in a fraction of the time required by comparable line array products. A line array is a group of audio drivers speakers mounted in a row. The la112a is a flexible, scalable line array speaker system allowing a wide range of installation and mounting configurations.
Design guidelines for practical near field line arrays james r. We should probably turn back the clock a little before we go on. These renowned speakers are used onstage and in clubs, theatres and other venues the world over. Mention is made of the vertical orientation of sound sources as far back as 1896. Early line arrays, such as the 1967 shure vocal master system that featured the va300s speaker column, a highly directional, wide range, lineradiator according to shures manual didnt initially catch on, but theyve steadily gained popularity over the past few decades in large soundreinforcement applications where achieving balanced coverage is a considerable challenge. It is a open design based on proven and practical line array cabinet design that uses offtheshelf drivers for simplicity, maintainability and. The array is designed so that when the speakers are active, the sound waves from each speaker interfere with each other in such a way that allows the sound to be better projected and directed. Transmission line labyrinth length of transmission line has to be long enough to provide at least 90. Contours the vertical sound dispersion such that floor and ceiling reflections. Do you use point source, line array or column speakers in your. Our largest and most powerful eikona loudspeaker to date. This is an older legacy design with seas magnesium cone woofers and fountek ribbon tweeters in the line arrays. The articulated 24 speaker line array provides 180 degrees of horizontal sound coverage while at the same time offering extremely.
Cbt36k line array speaker pair kit from dayton audio, the epique cbt36 is a floorstanding 5 ft. Man, i have come to the realization that almost no one has heard an actual line source speaker. The distance between adjacent drivers is close enough that they constructively interfere with each other to send sound waves farther than traditional hornloaded loudspeakers, and with a more evenly distributed sound output. A true line source will create a cylindrical wavefront propagating perpendicularly to the line source. Audio, engineering department download article pdf, 536 kb. Markaudio alpair7 bass reflex enclosure plan no cover. This revolutionary line array system consists of a dual 8 active.
And unlike traditional point source speakers, you can add more volume to a line array by adding to the line. Markaudio alpair7 bass reflex enclosure plan with cover. Although the column loudspeaker was effective in its context, it suffered from a lack of scale and a lack of science, each equally important. Just like its older and more expensive predecessors, seismic audio line array is a large step forward in speaker design from the standard box on a stick. Line array the vrx932lap is a powered, lightweight, compact 12 twoway line array speaker system designed for use in arrays of up to five units. Practical line array systems act as line sources only in the low and mid frequencies. The system includes dual 12 woofers, four 6 midrange drivers, and dual 1. A line array is a line of adjacent loudspeakers that coherently couple together creating a line source. So to scale up a column loudspeaker to auditorium proportions took the best part of three decades. This paper will examine the underlying theory and assumptions behind line arrays and will present danley.
In a conventional setup youre depending more on volume to fill an area, but because theres less loss of sound vertically, things can easily get out of hand if. April 3, 2014 this handbook covers all the major kinds of cab types youre likely to want to try and build, from hornloaded subwoofers to 4x12 guitar cabs, along with advice on dimensions, fixings materials and. The event210a line is a threeway powered line array in a double 10 dualband configuration which provides a wider frequency range. The alx2824la portable line array speaker system raises the bar for pro audio products. Line array speakers subwoofers and systems line arrays. Plans to build la112 line array speaker cabinet dual and. At live events, whether theyre rock concerts or jazz festivals, sound quality is essential, and it needs to be clear, undistorted, and delivered at an appropriate level. Karrays professional audio subwoofer solutions karray. It is widely recognized that tall columns of speake rs that comprise a line array have significant benefits when properly implemented. With improved mounting bracket for enhanced aiming flexibility. Ultraflat aluminum 26cm line array element with 1 drivers.
Vrx932lap is the ideal choice when line array performance is needed but the venue size doesnt call for the very lo. A line array is a loudspeaker system that is made up of a number of usually identical loudspeaker elements mounted in a line and fed in phase, to create a nearline source of sound. A loudspeaker is an inductive device so its impedance depends on frequency p. Adjustable polemount system for versatile floor staging. See more ideas about speaker plans, speaker, diy speakers. The vyper line consists of the flattest speakers in the k array portfolio and are housed in an elegant and resistant 2deep aluminum frame that features closelyspaced transducers which boast pure array technology. Point source vs line array and introduction to vhd5. This computation shows that it is theoretically possible to construct an audio line array that follows the theory at low. A line array is a loudspeaker system that is made up of a number of usually identical. A line array is when a number of speakers are combined and stacked in a vertical line, which is where the name comes from.
Professional series altec lansing bluetooth speakers. The incredible high output and dynamics, the extreme accuracy and high frequency extension plus the compact size makes the ttl33 wp the ideal tool for outdoor sound reinforcement, live performances and events as well as fixed installations in theatres. La3v210 the system that we are going to describe is a threeway line array system. The murphy corner line array mcla is a new type of line array loudspeaker system that i have designed to meet my own requirements for reference monitor loudspeakers with sufficient output to also serve as the sound reinforcement system for my band.
Line array gain taper breaking the line ii march 10, 2010. First, it allows each individual driver to use less power thus, in theory minimizing distortion as the driver does not have to work as hard. Line array speakers professional line array systems, sub. The src8l is a 2way line array speaker featuring wave front control technology which creates a sound field with high sound clarity and uniform sound pressure. Mla mini ultra compact multicellular loudspeaker array. Loudspeaker design, measurements, theory audioholics. Recommended digital speaker processor is the dpsp3 option. There are several very practical reasons why line arrays have replaced horizontal arrays for many. The ttl55a is a high power, three way, active line array module engineered to deliver an incredible output for use in indoor or outdoor large spaces. The thing to remember with line arrays is that to retain the advantage of the line array you need significantly less overall volume than you might be used to in a conventional setup. When correctly installed, a line array allows even frequency response and clear sonic coverage throughout the range of the system except for the nearest and farthest seats. Overlap angles between individual speakers can be set in 1 degree units between 0 and 5 degrees when constructing the line array speaker, making it possible to flexibly control speaker directivity. The cbt 50la1, with constant beamwidth technology, represents a breakthrough in pattern control, utilizing analog delay beamforming and amplitude tapering to accomplish consistent. To solve the integral gives the most commonly used expression for directivity of a line array.
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