The SB118 enclosure is a recommended subwoofer companion for the KUDO®, dV-DOSC, ARCS®, KIVA and XT systems, lowering the combined system operating range down to 32 Hz.

The SB118 contains a single 18’’ LF transducer integrated into a dual bass-reflex tuned enclosure. The specifically designed 18’’ transducer for the SB118 provides exceptional low thermal compression and reduced distortion even at the very highest operating levels. The dual bass-reflex design approach allows the SB118 to deliver both impact and high sensitivity factor. These combined properties contribute to the sonic qualities of the SB118 in terms of precision and musicality. Its compact size and associated tuning ratio combined with superior damping characteristics make it extremely well suited for coupled and multiple configurations. All these qualities combine to allow for ergonomic applications of acoustically optimized and non obtrusive FOH subwoofer systems.

Packaged in a compact 2U lightweight format chassis, both the LA4 and LA8 platforms are derivative of the same basic design and share the following characteristics:

• The ‘‘standard’’ mode using SB118 as a companion to KUDO®, dV-DOSC, ARCS®, KIVA and featuring a low-pass filter at 60 Hz ([SB118_60] preset) or as a companion to dV-DOSC, ARCS® and XT with a low-pass filter at 100 Hz ([SB118_100] preset)
• The ‘‘cardioid’’ mode using SB118 as a companion to KUDO®, dV-DOSC, ARCS®, KIVA featuring a low-pass filter at 60 Hz ([SB118_60_C] preset) or a companion to dV-DOSC, ARCS® and XT with a low-pass filter at 100 Hz ([SB118_100_C] preset)

The performance of the SB118 enclosure depends upon the choice of preset and physical system configuration.

Made of high grade Baltic birch plywood, the cabinet also features a pole mount socket for use with XT or two KIVA enclosures.

In 2004 L-ACOUSTICS® introduced a new diffraction model, the DED. The Distributed Edge Dipole was published in the AES journal and provides a logical, predictable methodology for low frequency sound design. The DED model describes how a part of the wave produced by the speaker spreads towards the cabinet edges where it is diffracted with group delay and phase inversion. The DED model is implemented for modelling the physics of cardioid applications and the size of enclosures.

In addition, L-ACOUSTICS® developed a progressive enclosure venting system for optimized LF performance. As a result the latest subwoofer designs incorporate newlaminar vents and ultra-low vibration walls for a significant
gain in peak SPL and a drastic reduction of turbulence noise.

L-ACOUSTICS® subwoofers benefit from the latest acoustic, signal processing and component innovations and deliver an exceptional level of performance while offering multiple modes of operation, whether on the road or in fixed installations.

• 32 Hz ([SB118_100] preset)

• 600 W

• 135 dB ([SB118_100] preset)

• LF: 1 x 18’’ weather-resistant, (4’’ coil, aluminium die-cast basket, vented magnet design)
• Nominal impedance: 8 ohms

• H x W x D: 800 x 442 x 820 mm - 31.5 x 17.4 x 32.3 in
• Weight (net): 61 kg - 134.5 lb
• Connectors: 2 x 4-pin Speakon®
• Material: 18 and 24 mm Baltic birch plywood
• Finish: grayish-brown RAL 8019^®
• Front: sandblast-coated steel grill
• Rigging: pole mount socket, integrated rails for flying, stacking runners

• Compact subwoofer enclosure, LF limit 32 Hz
• 1 x 18’’ LF
• Weight: 61 kg - 134.5 lb

• Reference subwoofer enclosure, LF limit 25 Hz
• 2 x 18’’ LF
• Weight: 93 kg - 205 lb

• 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

• Amplified Controller
• 2 analogue inputs and 4 amplifier outputs
• 4 x 1800W @ 4 ohms
• KUDO dedicated preset library
• LA NETWORK MANAGER software

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

• 3 000 capacity venue
• 16 KUDO
• 16 SB118
• Configurations depend on the event

• 1 200 seats
•  2 x 6 V-DOSC & 8 SB118 FOH

• 300 places
• 2 x 4 SB118

• 600 seats
• 8 x SB118 & front stage fills

• 1 000 seats
• 2 x 6 KIVA & 2 KILO FOH
• 1 x 7 KIVA central cluster
• 1 x 2 SB118 low extension in addition to 2 x 2 KILO

• 400 places
• 2 x 2 ARCS FOH
• 2 x 3 SB118 FOH

• Audience: 120 000
• 8 x SB118 center sub array

• Audience: 2 500
• 2 x 6 dV-DOSC
• 1 x 8 ARCS central cluster
• 2 x 6 SB118

• 2 x 2 SB118 side-sill

• Audience: 10 000
• 2 x 15 KUDO FOH
• 24 SB118 center sub array