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.

ARCS® is a WST®-based constant curvature line source and can be incrementally arrayed in the horizontal or vertical planes to match any audience geometry. The system is optimized for medium-throw applications in theatres as a main stereo system or a radial central cluster. Its medium contour allows it to be implemented as a main FOH system in touring applications or as a fill system sonically compatible with large format line sources.

• 50 Hz

• Horizontal: Omni for single element, polarized in line source
• Vertical: Omni for single element, dependant upon number of elements

• 129 dB ([KIVA_KILO] preset)

• 310 W

• 1 x 12’’ neodymium weather-resistant transducer
• Nominal impedance: 8 ohms

• Entirely captive, high-grade steel certified for 12 KIVA and 4 KILO according to manufacturer’s recommendations
• Angle increments: 0, 1, 2, 3, 4, 5, 7.5, 10, 12.5, 15°

• W x H/h x D: 520 x 353/280 x 358 mm - 20.5 x 13.9/11 x 14.1 in
• Weight (net): 19 kg - 41.9 lb
• Connectors: 2 x 4-pin Speakon
• Material: 15, 24, 30 mm Baltic Birch plywood
• Finish: grayish-brown, RAL 8019®
• Front: sandblast-coated steel grill, acoustically neutral ‘‘Airnet’’ grill cloth
• Rigging: integrated flying hardware and handles (sandblast-coated steel)

• Full range passive 2-way WST cabinet, operating bandwidth from 80 Hz to 20 kHz
• 2 x 6.5’’ LF transducers + 1 x 1.5’’ HF compression driver mounted on DOSC® waveguide
• Horizontal directivity - 100° from 500 to 18k Hz
• Vertical flexibility 0˚ to 15° in 1° increments up to 5° and 2.5° beyond
• Weight: 13 kg  28.7 lbs

• Low frequency extension cabinet, operating bandwidth from 50 Hz
• 1 x 12’’ neodymium transducer
• Weight: 19 kg  41.9 lbs

• Amplified Controller with DSP library and networking capabilities
• 2 analogue inputs and four amplifier channel outputs
• 4 x 1000 W per channel into 4 ohms
• 4 presets dedicated to KIVA
• LA NETWORK MANAGER control software

• Rigging bumper for flying or ground stacking KIVA
• Certified for flying up to 20 KIVA or 12 KIVA + 4 KILO, in accordance with manufacturer’s recommendations

• Accessory for rigging a maximum of 2 KIVA on a stand or for under balcony applications

• Electro-acoustic and mechanical simulation software (Windows® compatible) dedicated to L-ACOUSTICS products.

• 200 seats
• 2 x 4 KIVA & 1KILO FOH

• 300 seats
• 2 x 6 KIVA & 2 KILO FOH

• 1000 seats
• 2 x 6 KIVA & 2 KILO FOH
• 2 x 3 KIVA FOH

• 500 seats
• 2 x 6 KIVA & 2 KILO FOH

• 1 000 seats
• 2 x 6 KIVA & 2 KILO FOH
• 1 x 7 KIVA central cluster

• 2 x 6 KIVA & 1 KILO FOH

• 870 seats
• 2 x 6 KIVA & 2 KILO FOH

• 1730 seats
• 3 x 12 KIVA & 4 KILO FOH