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Arena and Stadium WST Line Source

  • Designed for stand-alone FOH Arena and stadium applications
  • Legendary sonic performance, clarity, precision and radiation characteristics
  • Exceptional level of rider-friendliness for touring and installation projects
  • Ergonomic and fast rigging system for quick set-up
  • Compatibility with dV-DOSC for fill complements
  • LA-RAK /LA8 touring package with advanced system drive and protection
  • New preset library with sonic signature fully compatible with K1 and KUDO®
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WST® Technology - Variable Curvature

L-ACOUSTICS® pioneered the field of modern line source array as early as 1993 with the introduction of Wavefront Sculpture Technology on the legendary V-DOSC® system.

Based on physical rules developed by Heil and Urban (AES 1992) the WST® theory defines five criteria for design and use of true line source arrays.

At the heart of Wavefront Sculpture Technology is the internationally-patented DOSC® waveguide, which morphs the spherical wavefront of the HF driver into a cylindrical, isophasic wave.

In combination with WST®, coplanar symmetry - the equivalent of coaxial assembly for HF, MF and LF drivers in vertical arrays - provides a coherent wavefront over the entire horizontal coverage at all frequencies. This behaves as if the sound was radiated by a single, continuous and articulated ribbon.

Any line source featuring L-ACOUSTICS® elements respects the coplanar symmetry and all WST®criteria on the entire sonic spectrum. This allows an exceptionally coherent sonic signature in very long throw applications, beyond the limits of other systems.  L-ACOUSTICS® has been designing reference line array systems for more than 15 years.

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Variable curvature, modular (KIVA and KARA)

Modular line sources offer tremendous flexibility for both the installation market and rental applications. Both KIVA and KARA® systems are designed to combine a compact, high performance and lightweight enclosure with a dedicated companion LF extension (KILO, SB15m, SB18) delivering the necessary LF resources when a reinforced contour is desired.


Variable curvature, large format (KUDO, V-DOSC and K1)

These systems are particularly suited to large format installations and touring applications for which a reinforced LF contour is desirable. The touring systems rely on the Rental Network K platform featuring the LA-RAK plug-and-play amplification, signal processing and signal distribution rack. The amplified controllers and Network Manager deliver a “right out of the box” contour adjustable with Array Morphing to obtain an homogeneous signature in complex system configurations.
 

 

V-DOSC - Large Format Line Source

V-DOSC® has revolutionized the loudspeaker industry with its outstanding sonic results for large format live sound reinforcement applications. L-ACOUSTICS® V-DOSC® is the first full frequency line source array based on the principles of Wavefront Sculpture Technology®. V-DOSC® possesses an exceptional level of rider-friendliness for touring and installation projects.

At the heart of V-DOSC® is the internationally-patented DOSC® waveguide which fulfills WST® criteria at high frequencies, allowing elements to couple coherently and create a single, continuous, isophasic sound source. As a result, V-DOSC® is a full-spectrum coherent system, whereas conventional horn and driver assemblies suffer interference throughout most of their operating bandwidth.

V-DOSC® now benefits from the latest presets implemented on the LA8 amplified controller. It can be seamlessly integrated into complex stadium and arena configurations thanks to a sonic signature entirely compatible with K1 and KUDO®. The K standard for V-DOSC® includes the LA-RAK, SB28, dV-DOSC fill enclosure, signal distribution, cabling and rigging accessories.
Usable bandwidth
(-10dB)
  • 40 - 20k Hz
Nominal Directivity
(vertical line source)
(-6dB)
  • Horizontal: symmetrical 90°
  • Vertical: defined by the array
Maximum SPL
  • 134 dB
Long term RMS handling capacity
  • LF: 2x 375 W
  • MF: 600 W
  • HF: 200 W
Components
  • LF 2 x 15" weather-resistant loudspeaker (3" voice coil, bass-reflex loaded)
  • MF 4 x 7" weather-resistant loudspeaker (kevlar cone body, bass-reflex loaded)
  • HF 2 x 1.4" compression driver mounted on patented DOSC waveguide

 
Physical data
  • W x H/h x D: 1300 x 434 x 565 mm - 51.2 x 17.1 x 22.2 in
  • Weight (net): 108kg - 238.1 lb
  • Connectors: 2x 8-pin Pa-com®
  • Material: 15 mm, 30 mm Baltic birch plywood
  • Finish: Maroon-gray™
  • Grill: Black epoxy perforated steel with acoustically-transparent foam
  • Rigging : Integrated flying hardware and handles
Drawings
V-DOSC
  • Frequency response 50 - 18k Hz (±3 dB))
  • Horizontal symmetrical 90°
  • Vertical defined by the array
  • Weight: 108 kg - 238.1 lbs
  
dV-DOSC
  • Full range active 2-way WST cabinet
  • Usable bandwidth: 65 Hz to 20 kHz
  • Transducers: 2 x 8’’ LF + 1 x 3’’ HF (diaphragm compression driver) mounted on DOSC® waveguide
  • Symmetric, 80° (25°/55° or 55°/25°) Asymmetric
  • Horizontal directivity: 120° (from 1 to 20 kHz)
  • Vertical flexibility: 0˚to 7.5°
  • Weight: 31.8 kg - 70.1 lbs
BUMP2
  • Flying / stacking bumper including accessories
SB28
  • Reference subwoofer enclosure, LF limit 25 Hz
  • 2 x 18’’ LF
  • Weight: 93 kg - 205 lb
  
LA8/LA-NETWORK MANAGER
  • Amplified controller with DSP library and networking capabilities.
  • Remote control software.
SOUNDVISION
  • Electro-acoustic and mechanical simulation software (Windows® compatible) dedicated to L-ACOUSTICS products.
GENESIS WORLDWIDE TOUR (2007)
  • Audience: 15 000 to 40 000
  • Total 96 V-DOSC
  • 4 x 16 V-DOSC FOH
  • 2 x 16 V-DOSC outer fills
  • V-DOSC delay lines 
ROBBIE WILLIAMS WORLDWIDE TOUR (2006-2007)
  • Audience: 50 000
  • Total : 112 V-DOSC
  • 4 x 16 V-DOSC FOH
  • V-DOSC delay lines
 		  
MIGHTY MEN CONFERENCE (2009)
Greytown, KwaZulu-Natal - South Africa
  • Audience: 130 000 
  • 4 x  8 V-DOSC & 2 dV-DOSC
  • 2 x 8 V-DOSC delay
  • 4 x 6 KUDO delay
  • 4 x 4 dV-DOSC delay

35th ANNIVERSARY SHOW OF HOHNER (2008) Cologne - Germany
  • Audience: 14 000
  • 2 x 12 V-DOSC & 3 dV-DOSC FOH
  • 2 x 7 dV-DOSC outfills
  
CONCERT AT THE CAPITOLE (2008)
Toulouse - France
  • Audience: 8 000
  • 2 x 9 V-DOSC & 3 dV-DOSC FOH
  
REFLEXION SHOW (2006)
Prague - Czech Republic
  • Audience: 8 000
  • 2 x 9 V-DOSC & 3 dV-DOSC FOH
  
David Stern
System Engineer
Arizona-based Precise Corporate Staging (PCS)
 "We use V-DOSC for big events like this because, in my opinion, it's simply the best cabinet out there, I rarely have to spend time EQing the PA--it's a wonderfully flat box--and any time we advance a show with the bands and their engineers, everyone is always thrilled to see V-DOSC on the list. It's a quality product."
Laurent Albert
Managing Director
Le Puy du Fou Theme Park
During the set up of La Cinéscénie (2003)
 "As far as I’m concerned, V-DOSC is the most extraordinary long range sound system of ALL time!"
Jay Curiel
Vice President 3G
(After their purchase of L-ACOUSTICS systems in 2004)
 "I’ve been working with concert rigs for a decade and a half and have never heard a system sound like this.  V-DOSC is simply on a different level, and dV-DOSC is equally amazing"
Masakazu Kanamori
Sound design
CATS Musical Japan (2004)
 "“The reason for choosing L-ACOUSTICS was the impressive polar response of the V-DOSC speaker system, which we need due to the shape of the stage"
Dave Rad
Founder/Owner
Rat Sound Systems Inc
(During the Red Hot Chili Peppers European Tour 2004)
 "“In my experience, the worldwide availability combined with the extremely well-maintained vendor-to-vendor consistency make V-DOSC the only system capable of doing what I am trying to achieve : worldwide sonic consistency, even when I cannot carry a system.   We have 8 companies based in 7 different countries all supplying systems that fit into a master system design template"