KUDO - Large Format WST® Line Source

KUDO® is a large format line source operating on a frequency range from 35 Hz to 20 kHz. The frequency range can be extended to either 32 Hz or 25 Hz with the addition of the complimentary SB18 and SB28 subwoofers, respectively.

The KUDO system is a 3-way, quad-amplified design and is equipped with two 12” LF transducersmounted in a bass-reflex enclosure, four 5” high efficiency MF transducers, and two 1.75” HF diaphragm compression drivers coupled to individual DOSC® waveguides. The cabinet incorporates the K-LOUVER® Modular Directivity Technology (Patent pending) allowing mechanical adjustment of the MF/HF directivity with 4 possible settings in the plane perpendicular to the DOSC® waveguides. The alliance of coplanar symmetry and DOSC® waveguides allows KUDO to fulfill the 5 WST® criteria.

The KUDO enclosure is made of first grade Baltic birch plywood to ensure maximum acoustical and mechanical integrity. The four-point rigging system is entirely captive and almost invisible when recessed into the cabinet. It allows flying up to 21 KUDO enclosures in a variable-curvature vertical line source array with an inter-element flexibility from 0° to 10°. The rigging system has also been designed to configure KUDO as a horizontal constant-curvature line source array with fixed 10°inter-element angles.

The KUDO system is driven by the dedicated LA8 amplified controller which ensures active system linearization, intelligent transducer protection, and optimization for two operating modes:

• The ‘‘FULL RANGE’’ mode for standalone KUDO applications
• The ‘‘HIGH-PASS’’ mode for use with additional subwoofers or fill applications

Both modes offer three specific presets to optimize the KUDO tonal balance according to the K-LOUVER® settings (50°, 80° or 110°). The performance of KUDO depends on the choice of electronic preset and physical configuration.

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.

In addition to the WST^® technology, the KUDO® features the K-LOUVER Modular Directivity Technology, offering far more flexibility than any other arena or theatre system. This combination of technologies generates eight directivity modes in both the horizontal and vertical planes and allows KUDO® to fit many applications in terms of audience, geometry and content.

• 35 Hz - 20 kHz ([KUDO50_25] preset)

• Horizontal: 50° or 110° symmetric - 25°/55° or 55°/25° asymmetric
• Vertical: Defined by array size and curvature

• 140 dB ([KUDO50_40] preset)

* Peak level measured at 1m under free field conditions using 10 dB crest factor pink noise with specified preset and corresponding EQ settings

• LF: 2 x 450 W
• MF: 312 W
• HF: 75 W

• LF: 2 x 12’’, mounted in a bass-reflex enclosure
• MF: 4 x 5’’ high efficiency
• HF: 2 x 1.75’’ diaphramg compression drivers coupled to DOSC® waveguides
• Nominal impedance: LF = 2 x 8 ohms, MF = 8 ohms, HF = 8 ohms

• Entirely captive, high grade steel
• Vertical: Angles from 0° to 10° (1° steps), certified for up to 21 KUDO®
• Horizontal: Fixed angles of 10°, certified for up to 6 KUDO® per K-LIFT

* Installation safety limits are specified in SOUNDVISION software which is designed to help with L-ACOUSTICS® product implementation

• W x H/h x D: 876 x 356/276 x 689 mm - 34.5 x 14/10.9 x 27.1 in
• Weight (net): 87 kg - 191.8 lb
• Connectors: 2 x 8-point PA-COM® sockets
• Material: 15, 18 and 30 mm Baltic Birch Plywood
• Finish: grayish-brown, RAL 8019®
• Front: polyester powder-coated steel grill, Airnet® acoustically neutral fabric
• Rigging: integrated flying hardware and handles

• Quad-amplified, full range, 3-way active WST® enclosure 2 x 12’’ LF + 4 x 5’’ MF + 2 x 1.75’’ DOSC® HF
• Bandwidth = 35 Hz – 20 kHz

• Dual-vented low frequency extension cabinet. LF limit = 32 Hz

• Reference subwoofer enclosure. LF limit = 25 Hz

• Amplified controller with DSP library and networking capabilities
• Touring rack
• Remote control software

• Rigging structure for flying or stacking KUDO
• Certified for a maximum of 21 KUDO

• Accessory for rigging KUDO horizontally
• Certified for up to 6 KUDO

• K-BUMP site angle adjustment accessory for stacked KUDO system

• 3D acoustical and mechanical simulation software dedicated to L-ACOUSTICS® products

• Multipurpose hall : audience varies
• 2 x 5 KUDO

• 1800 seats
• 1 x 6 KUDO

• 3 000 capacity venue
• 2 x 9 KUDO FOH

• 2 500 seats
• 2 x 6 KIVA & 6 KUDO FOH

• 1 000 seats
• 2 x 5 KUDO

• 900 seats
• 2 x 5 KUDO

• 2 000 seats
• 2 x 11 KUDO

• 1 650 capacity venue
• 2 x 6 KUDO

• 2 000 capacity venue
•  5 KUDO centrally Stacked

• 900 to 3 220 seats
• 2 x 6 KUDO FOH
• 2 x 9 KIVA FOH
• 2 x 3 KIVA & 1 KILO

• 3000 capacity venue
• 16 KUDO
• Configurations depend on the event

• 1380 seats    
• 2 x 8 KUDO FOH

• 900 places 
• 2 x 10 KUDO FOH

• Audience: 70 000
• 2 x 15 KUDO FOH
• 4 x 8 KUDO delay tower (500 meters)

• Audience: 6 000
• 2 x 8 KUDO FOH

• Audience: 3 000
• 2 x 6 KUDO

• Audience: 6 000
• 2 x 12 KUDO & 9 SB28

• Audience: 120 000
• Total: 86 KUDO
• 2 x 20 KUDO FOH
• 2 x 11 side fills
• 2 x 12 KUDO delay towers

• Audience: 60 000 visitors a day
• Total 93 KUDO in 18 towers

• Audience: 40 000
• 2 x 9 KUDO side fills

• Audience: 15 000
• 2 x 12 KUDO side hang         

• Audience: 5 200
• 3 x 12 K1 & 3 K1-SB FOH
• 2 x 12 KUDO side hang

• Audience: 10 000
• 2 x 21 KUDO FOH                   

• Audience: 15 000
• 2 x 8 KUDO FOH

• 63 KUDO in 9 towers

• Audience: 15 000       
• 2 x 9 KUDO FOH

• Audience: 8 000       
• 2 x 12 KUDO FOH

• Audience: 600    
• 2 x 4 KUDO FOH

• Audience: 10 000      
• 2 x 16 KUDO FOH

• Audience: 20 000      
• 1 x 21 KUDO FOH

• Audience: 20 000      
• 1 x 21 KUDO FOH