The q1 is a passive 2way line array speaker with two 10 lf drivers and one 3 hf driver. 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. This paper will examine the underlying theory and assumptions behind line arrays and will present danley. Urban, et al 1 derive line a rray parameters based upon fresnel analysis near field techniques while ureda 3 develops similar criteria but argues from far field methods. Figure 16 shows a theoretical line array with a large number of vertically oriented sources. The vlac2100 uses jbl proven technology components.
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. Driver units are installed vertically and with minimal space between units in order to create a continuous linear sound source. View and download bose l1 compact service manual online. Retrieved 20170325 products soundvision presentation. See more ideas about speaker cab, speaker, speaker plans. With the v7 release, many have perceived vdosc as a new loudspeaker and with the. Line array speakers thank you for choosing the s1234 ss1234 sw1234 line array speaker from amplivox portable sound systems. Because of the different working principle, a proribbon driver does not have a comp. Pdf loudspeaker line array educational demonstration.
I was also very interested in line arrays as the concept always seemed like a good idea. Practical line array systems act as line sources only in the low and mid frequencies. An introduction to line array speaker systems users manual users manual 1 an introduction to line array speaker systems this document describes the operating principles of the palcoplus line array system, as well as its main applications and features. A line array is a group of audio drivers speakers mounted in a row. Retrieved 20170325 adamson shooter software electrovoice laps jbl vertec line array calculator meyer sound mapp online pro eaw kf730. Specs of speaker driver sanway professional audio equipment. Participated in a 3 day vdosc training session on theory and rigging. Line array waveguides line array waveguides use various methods to normalize the propagation. The question of line arrays by douglas jones, danley sound labs. Dec 22, 2020 line array calculator lac is a simulation software intended for the design and prediction of jbl vtx line array systems and their acoustical performance. The principle of configuring a vertical column made up of closely spaced loudspeakers has been around for decades, principally. The question of line arrays or why danley does not build line arraysby douglas jones, danley sound labs intromany of the leading loudspeaker manufactures are currently building line array systems. 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 high frequency section is hornloaded for maximum sensitivity and optimum pattern control and features three d2415 drivers featuring 1. In addition, you can also use the software with flown and ground stacked jbl vtx subwoofer arrays. See more ideas about speaker box design, speaker plans, speaker box. 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. Design guidelines for practical near field line arrays james.
The manual procedure requires to play different ex citation signals. Olson used line array concepts to develop the column speaker in which vertically aligned drivers in a single enclosure produced midrange output in a wide horizontal and narrow vertical pattern. But, in fact, clair has been advocating line arrays for some time. 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. It was necessary to begin using an increasing number of speaker cabinets to. Line arrays, although not new, seem to be the latest flavour of the month in sound reinforcement. Us7298860b2 rigging system for line array speakers. But not an actual line array speaker that can produce the actual line source theories, cylindrical, expanding wave.
L length of the line array m f frequency hz this calculation shows, for example, that the effective distance of a single vxl124 array length 1. Mapp online is the multipurpose acoustical modeling program developed by loudspeaker manufacturer meyer sound to model the sound fields developed by its products in a variety of configurations. Meyer, lacoustic, nexo and even jbl have decent papers on line array theory. The models are based on theoretical line sources, but the estimates obtained.
Line arrays of loudspeakers are used by sound system designers to obtain a narrow directivity response. Montarbo palco plus user manual pdf download manualslib. A sound designer is able to enter data into mapp online, including individual loudspeakers and arrays, then click the predict button and get a graphical. To comprehend the various line array design parameters, table ii has been prepared to. We are excited in introducing this truly unique system. These unique units feature the latest technology and are based on a patented algorithmic technique, which makes it ideal for high quality speech and background music applications, especially in reverberant acoustic environments where it is difficult to meet contractual speech intelligibility requirements. Each module includes a first loudspeaker element and a second loudspeaker element.
Point source vs line array and introduction to vhd5. Designed with the latest technology in line array speaker systems, the hyperspike linewave is optimized to produce clear and authoritative voice commands and powerful tones never before possible within reverberant environments. Starting from the very basic type of line arrays, different configurations of arc and circular arrays are simulated. Give you the world standard for stage vocals, perfectly balanced. It works in a similar way to a line array and is a more common solution. And indeed, a line array can offer significant advantages in throw and control, when designed correctly. Messenger series dsp steerable line array penton audio usa.
Pdf simulation and implementation of sound focusing using. Oem service is availablefor sample orders, we can ship on the same day of payment10 years of experience in manufacturing amplifiersthree years warranty, provide images or video, our engineers judge the problem and provide aftersale assistance. The term linearray is used to describe a speaker system having multiple speaker units with the same characteristics arranged vertically to emulate a linear. Building your own custom speakers has got to be one of the most. This invention relates to a linearray loudspeaker that is configurable to meet the acoustic requirements of a venue. Dec 07, 2018 line array cabinet plans pdf toa type c speakers are moduletype 2way line array speaker systems featuring highfidelity sound thanks to the well thoughtout design of the speaker s since in practice many loudspeaker line arrays are not actually straight, the paper then. Unless you are a speaker manufacturer without one, whats not to like.
In one embodiment, the linearray includes a combination of farfield and nearfield loudspeaker modules which are selectively fixedly connected to each other. This enables delivering a uniform sound pressure that resists attenuation with distance. Community oriented diy loudspeaker design plans, general resources downloads, chat and forum. The gsl12 is a line array module specifically designed for largescale sound reinforcement. When two theories predict phenomena to the same accuracy, then the one which is simpler is usually the better one. Bose l1 compact service manual pdf download manualslib. Knowing that one of the smallest hf speakers measures 24mm so effective up to 4,1khz, it is clear that this is not possible. Sinbosen line array sn110 professional audio speaker for stage. Sinbosen professional line array speakers dual 12 inch. First, it allows each individual driver to use less power thus, in theory minimizing distortion as the driver does not have to. 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. Our system combines flexibility with functionality.
Please refer to this user guide as you enjoy the unique capabilities of. The question of line arrays by douglas jones, danley sound. Pure line array theory is based on pure geometry and the thought experiment of the free field where sound is free. Rather, modeling with a useful degree of accuracy requires a computational code that uses a highresolution measurement of the complex directionality of actual loudspeakers, such as mapp online. The gsl8 houses two 14 neodymium forward facing lf drivers and two side firing 10 neodymium lf drivers. Line arrays offer cogent means to increase coverage and spl while reducing temporal distortion and the architectural footprint of the loudspeakers. Figure 3 delineates the geometric parameters of concern to the line array designer. Speaker manufacture line array pro audio subscribe to channel.
A brief overview of line array theory will now be given. Please refer to this user guide as you enjoy the unique capabilities of an. Following are the ten most widespread line array myths. Messengerg2 the messenger series is a range of fully digital sidelobefree speaker array. 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. The history of the line array speaker prosoundweb forums.
Line array systems are now the forerunner in large scale live sound. In the free field, sound which has its origin at a point a point source will be propagated. The beam forming capability of the linewave speaker allows even coverage across the listening plane while focusing. He published his findings in his 1957 text, acoustical engineering. 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. Line array speaker vs point source speaker audiogon. A theory of smart loudspeaker arrays is described where a modified fourier technique yields complex filter coefficients to determine the broadband radiation characteristics of a uniform array of. This revived approach to acoustical control formerly embodied in the familiar column loudspeaker now dominates the largescale touring market, and also has. The al4 line array system is made up of the al4 acoustic element, the rack. User guide s1234 ss1234 sw1234 line array speakers. 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. Sinbosen professional line array speakers dual 12 inch line array la212 dj speaker. The theory behind line arrays was first published by harry olson in 1957 and was initially used to develop column loudspeakers which are line.
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. User manual sanway professional audio equipment co. Likewise, eaws kf860 line array has been around for the best part of a decade, and, if we look back even further, the jbl 4682 line array was on the market back in 1975. The event210a line is a threeway powered line array in a double 10 dualband configuration which provides a wider frequency range. 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. This replaces the manual process of selecting specific. Over the years ive generated a few simple theories about s.
You can also choose from yes dual 10 inch line array speaker, as well as from 3months1year, 5years, and 3 months dual 10 inch line array speaker there are 710 suppliers who sells dual 10 inch line array speaker on, mainly located in asia. Oct 22, 2020 twoway full range loudspeaker with 2 x 10 differential drive lf. With power handling capacity of rms 400 watts, it could be used in vertical configurations starting from two cabinets with a 15 to 30 dispersion. The radiation frequency associated with this figure is 630 hz. A line array is a loudspeaker system that is made up of a number of usually identical. In other words, linking boosts the effective length of line array speakers. That said, practical line array systems remain very useful tools, regardless of whether the continuous line array equation applies.
Pdf in this paper the study and experiments into loudspeaker arrays for the purpose of sound focusing are presented. Design guidelines for practical near field line arrays. Automatic calibration and equalization of a line array system ntnu. Line arrays sound bars beam steering crossover design description using traditional far field measurement techniques, determining directivity of large speaker array implicates a lot of difficulties for the data acquisition. The murphy corner line array an open loudspeaker design project by john l.
Medium power indooroutdoor mass notification linewave. Line arrays at europes largest retailer of musical instruments fast delivery, 30day moneyback guarantee and 3year thomann warranty. The line array effect of the narrowing of the beam with increasing frequency was first demonstrated by acoustical pioneer harry olson. Far field conditions cannot be reached because of the limited size. Often people use the term line array to describe a curvylinear array. Both speaker types are 2way line array speakers, each containing 32 speaker elements8 x 10cm woofers and 24 high frequency drivers. 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. Nov 16, 2011 the mcla system employs 24 speakers per corner line array enclosure. The line array speakers are designed to allow easy rear access for maintenance work. The grund audio design ga4041ngs is a groundstacking line array speaker system designed for use by regional touring companies who require fast, inexpensive setup, or where reliable hanging points are unavailable. A wide variety of dual 10 inch line array speaker options are available to you, such as no.
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