L-Acoustics SB18

The SB18 and SB28 subwoofers are the ideal complement of L-ACOUSTICS WST® line sources and coaxial systems for applications requiring an extension of bandwidth. Taking on the latest innovations in electro-acoustics, signal processing and components, SB18 and SB28 deliver an exceptional level of performance while offering the engineer and sound designer numerous modes of operation for rental and fixed installation applications. The main L-ACOUSTICS® system components for LF contour reinforcement are:

• SB18 subwoofer with a low frequency limit of 32 Hz

• SB28 subwoofer with a low frequency limit of 25 Hz

• LA4 and LA8 (LA-RAK) amplified controllers

The 18’’ transducers specifically designed for SB18 and SB28 combine high excursion capabilities, low thermal compression and reduced distortion. The bass-reflex vents feature a progressive profile allowing laminar airflow and reduced turbulence noise even at the highest operating levels. These combined properties contribute to their sonic qualities in terms of precision and musicality. The SB18 design is based on a single 18’’ LF transducer integrated into a dual bass-reflex tuned enclosure to deliver both impact and high sensitivity. Its compact size makes it extremely well

suited for compact FOH applications. Therefore, SB18 is particularly recommended for KUDO, KARA®, KIVA, ARCS® and coaxial LF contour reinforcement in both standard and cardioid modes. The SB28 contains two 18’’ direct radiating LF transducers integrated into a bass-reflex tuned enclosure. The exceptional cone excursion capability and use of laminar airflow vents deliver a greatly improved +5 dB peak SPL output compared to the previous generation. The SB28 enclosure is a recommended subwoofer companion (stacked configurations) for the KUDO®,

V-DOSC®, ARCS® and K1 systems, lowering the combined system operating range down to the infra region of 25 Hz.

The SB system performance is acoustically optimized thanks to a dedicated preset library specifically engineered for the LA4 (SB18) and LA8 (SB18 and SB28) amplified controllers. Besides delivering award-winning audio quality, the amplified controllers deliver intelligent driver protection and advanced signal processing while offering a wide variety of configurations for the

sound designer and engineer. Operation modes include stereo/standard or mono/cardio and are available with two low-pass filters to accommodate various coupling conditions, footprint constraints and LF contour requi