The SB18 is the universal subwoofer designed for modular WST® line sources and coaxial systems, lowering the combined system operating range down to 32 Hz. Its compact size and integrated rigging make it extremely well suited for flown coupled configurations with KARA®, allowing flat to reinforced contour applications.

The association of a specifically designed 18’’ transducer with a dual bass-reflex tuned enclosure provides exceptional impact and high sensitivity factor, low thermal compression and reduced distortion. The vents feature a progressive profile allowing laminar airflow and reduced turbulence noise even at the very highest operating levels. These combined properties contribute to the sonic qualities of the SB18 in terms of precision and musicality.

The control and amplification of the SB18 is managed by either the LA4 or LA8 (LA-RAK) platform. The onboard DSP filtering encompasses advanced crossover functions, system EQ, and dual thermal and over-excursion
protection of the transducer. The L-ACOUSTICS® amplified controllers offer the following drive modes:

• The ‘‘standard’’ mode using SB18 as a companion to KARA®, KIVA, ARCS® and featuring a low-pass filter at 60 Hz ([SB18_60] preset) or as a companion to KARA®, KIVA, ARCS® and XT with a low-pass
  filter at 100 Hz ([SB18_100] preset).
• The ‘‘cardioid’’ mode using SB18 as a companion to KARA®, KIVA, ARCS® and featuring a low-pass filter at 60 Hz ([SB18_60_C] preset) or a companion to KARA®, KIVA, ARCS® and XT with a low-pass filter at 100 Hz ([SB18_100_C] preset)

The performance of the SB18 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.

• 32 Hz ([SB18_100] preset)

• 136 dB ([SB18_100] preset)

• 700 W

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

• Steel, certified for: 16 SB18

• W x H/h x D: 750 x 540 x 707 mm - 29.5 x 21.3 x 27.8 in
• Weight (net): 52 kg 114.5 lbs
• Connectors: 2 x 4-point Speakon®
• Material: baltic birch plywood
• Finish: Grey-brown, RAL 8019®
• Front: polyester powder-coated steel grill, airnet® acoustically neutral fabric
• Rigging: pole-mount socket, integrated rigging for flying, stacking runners (steel with dual coating zinc and polyester powder)

• Compact subwoofer, LF limit 32 Hz

• Reference subwoofer, LF limit 25 Hz

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

• Tilt adjustment screw jacks for stacked M-BUMP

• Rigging structure and extension bar for flying or stacking SB18
• Certified for flying up to 16 SB18

• 3D electro-acoustic and mechanical simulation software dedicated to L-ACOUSTICS products