The cbt 70j1, with constant beamwidth technology, represents a breakthrough in pattern control consistency, utilizing complex analog delay beamforming and amplitude tapering to accomplish superior, consistent vertical coverage without the narrow vertical beaming and outofcoverage lobing that are typical of straight formfactor column speakers. Meyer sound ease files we would like to provide some additional information regarding our ease files as we represent our products differently than other manufacturers. We should probably turn back the clock a little before we go on. It was necessary to begin using an increasing number of speaker cabinets to. 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. Line arrays explained issue 11 audiotechnology magazine. Featuring two highpower hypervented 18 neodymium woofers with 4. They are the superior choice for foh and lcr arrays in venues up to 3000 seats. Cbt36k line array speaker pair kit from dayton audio, the epique cbt36 is a floorstanding 5 ft. Line array gain taper breaking the line ii march 10, 2010.
How to make original sound box using sand and glue. Cone type direct radiators have an order of magnitude lower distortion figures than regular compression driverhorn systems due to several reasons, so most line array. A seven foot long array is reflected into a 35 foot array by consideration of just the first two reflections. University of limerick invests in xlvc line array from electro. Hybrid line arrays professional loudspeaker company. Qscs extensive loudspeaker portfolio is fully available in todays most common loudspeaker simulation platforms using. The m3d line array loudspeaker is, of course, the notable exception. Mention is made of the vertical orientation of sound sources as far back as 1896. 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. The question of how to wire the drivers in a vertical line array has been asked of me so many times ive decided to explain and show the scheme here. To offer the most reliable solutions, all the products in our installed sound series are made with the most durable and impervious materials boasting aluminum or steel frames to render them weather. 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. Among the advantages of line arrays are their increased directivity in the vertical.
Line array systems work best with low and midrange frequencies, while point source systems provide a full range of sound without additional modifications. In the free field, sound which has its origin at a point a point source will be propagated. It can be converted into the biamplifier drive system by. Our ease files are calibrated to show avg spl, and will be comparable to mapp avg spl. Quite a few of the sound companies i know use line array systems and im wondering when you would use a line array system over a standard twothree way top speaker over subs. Free viewers are available to access additional loudspeaker data such as polar balloons, polar plots, di, and many other. Mitch4t the main difference is that output from a line source or line array will fall off at 3 db for every doubling of distance, instead of 6 db for every doubling of distance for a point source, under anechoic conditions. What are the advantages disadvantages of using line array systems over standard systems. We have researched many aspects of line array waveguides, and are proud to offer our customers a complete series of high frequency solutions for line array systems. Vxl series line array speakers offer a unique combination of outstanding sound quality and slim form that is ideal for a variety of environments. Please carefully follow the instructions in this manual to. When two theories predict phenomena to the same accuracy, then the one.
Pdf loudspeaker line array educational demonstration. Line array speakers extension plateoptional protection pad optional srs4l srs4s srep4 srpp4 srs4l srs4s thank you for purchasing toas line array speakers and their associated products. 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. Unlike traditional pointandshoot systems, line arrays. And unlike traditional point source speakers, you can add more volume to a line array by adding to the line. As we can see from this polar pattern what actually occurs with a line array is a range of peaks and troughs, caused by destructive and constructive interference between the elements.
It is widely recognized that tall columns of speakers that comprise a line array have significant benefits when properly implemented. The system includes dual 12 woofers, four 6 midrange drivers, and dual 1. Hugh sarvis explains the technologies behind the x series speakers. A line array is a line of adjacent loudspeakers that coherently couple together creating a line source. 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. 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. At first a set of expressions for straightline arrays is developed, including the directivity function, polar response, quarterpower angle, onaxis and offaxis pressure re sponses, and twodimensional pressure field. Pure line array theory is based on pure geometry and the thought experiment of the free field where sound is free to propagate free of environmental factors such as room reflections or temperature refraction. The vt4887a is designed to deliver highquality reinforcement of music and speech in a variety of applications including concert audio and corporate av presentations of all types. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Speakers professional audio products yamaha united. The kla series brings the power and sophistication of a line array system into an easytouse product significantly redefining the line array product category. Dual 12 3way 3600watt powered large format line array.
The top pattern shows the smooth dispersion of a point source system compared to the erratic dispersion of a line array. A brief overview of line array theory will now be given. This is instead of the spherical wavefront emitted from a point source. Including the second order reflections we see the height of the array increased five fold over the actual speaker. Line array speaker setups are commonly used to deliver sound to live audiences.
Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Hla hybrid line arrays combine ribbon line array articulation with dipole lowfrequency steering to achieve precise directional control not previously possible in such compact packages. A set of mathematical expressions to analyze the performance of loudspeaker line arrays is provided. Do you use point source, line array or column speakers in your. Line arrays of loudspeakers are often employed to provide increased directivity, generally in the vertical plane. 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. With its simple lift, click and play approach, kla can be deployed in a fraction of the time required by comparable line array products.
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. The first set of speakers i ever built had drivers that came from radio shack in 1978. The al8 line array system benefits from a highly sophisticated dsp architecture that allows each individual componentfrom transducers, amplifiers and cabinets, all the way out to the systemvue software itselfto work in perfect harmony for precise control and easy operation. The hdl 15as is the ideal flyable bass complement for the hdl 10a array system. Get verified list of line array speaker system, line array speakers manufacturers, suppliers and exporters. Compact biamplified 3way high directivity line array element. The sub 9006as is one of the most powerful 2x18 subwoofers in the field of live sound. A six cabinet array would have to be flown, just like a fullscale line array, but jbl have cleverly provided the option of mounting two cabinets on a tripod stand, or on a pole on top of the srx718s subwoofer. These line array speakers manufacturing companies provides high. Pdf this paper presents a physical demonstration of an audiorange line array used. To solve the integral gives the most commonly used expression for directivity of a line array. At first a set of expressions for straightline arrays is developed, including the directivity function, polar response, quarterpower angle, onaxis and offaxis pressure re.
K array s installed sound series is a collection of the most aestheticallyrefined and quality loudspeakers in the professional audio industry. First, one needs to know the nominal impedance to the drivers forming the array. A true line source will create a cylindrical wavefront propagating perpendicularly to the line source. A driving force in concert sound reinforcement since its beginning, ev is dedicated to developing products that exceed the everhigher expectations of audiences, performers, and production professionals the world over. Build a mini line array along with all my other interests in life, audio and speaker building is near the top. Line array speaker vs point source speaker audiogon. Powered by a 7200 w digital amplifier, the sub 9006as can perform in the most demanding situations. Many of the leading loudspeaker manufactures are currently building line array systems. The hdl 10a is the ideal choice when line array performance is needed and a fast and easy set up is a must.
Recommended digital speaker processor is the dpsp3 option. This paper will examine the underlying theory and assumptions behind. La3v210 the system that we are going to describe is a threeway line array system. Is there any inherent advantage to either of these speaker designs line array or point source. In a nutshell, a line array is a column of speaker cabinets designed to collectively function like one large speaker. Design guidelines for practical near field line arrays james r. 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. Today, line arrays are the loudspeaker format of choice for highpro. A thorough analysis of your environment helps ensure a system that will capably serve your congregation for years to come. The mcla system employs 24 speakers per corner line array enclosure.
516 922 420 1530 67 557 1550 630 411 22 1571 56 1238 1055 753 1360 1272 52 1423 30 444 262 338 728 767 7 903 1482 232 534 601 685 404 262