Introduction
Introduction
SB18 IIi
SB18 IIi is a compact subwoofer designed to extend the bandwidth of the Kara IIi system in installation applications. It
features one high-excursion, direct-radiating 18" transducer mounted in a dual bass-reex tuned enclosure.
SB18 IIi can be coupled mechanically and acoustically with Kara IIi to reinforce contour and extend bandwidth to 32 Hz.
The subwoofer features L-Vents that substantially reduce turbulence and port noise at high levels while also increasing LF
efciency.
The SB18 IIi frequency response is optimized to couple perfectly with Kara IIi, in own or stacked congurations, and to
extend the bandwidth of X Series loudspeakers.
SB18 IIi can be deployed in standard or cardioid congurations with dedicated presets.
How to use this manual
The SB18 IIi owner's manual is intended for all actors involved in the system design, implementation, preventive and
corrective maintenance of the SB18 IIi system. It must be used as follows:
1.
Read the technical description for an overview of all system elements, their features, and their compatibilities.
•
Electro-acoustical description
(p.10)
•
(p.11)
2.
Prepare the system conguration. Consider the mechanical limits and the available acoustical congurations.
•
(p.21)
•
(p.23)
3.
Before rigging the system, perform mandatory inspections and functional checks.
4.
To deploy the system, follow the step-by-step rigging instructions and refer to the cabling schemes.
•
(p.25)
•
Connection to LA amplied controllers
(p.46)
(p.49) section contains the operations authorized for the end user.
Performing another operation exposes to hazardous situations.
For advanced maintenance, contact your L-Acoustics representative.
As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to
change the specications of its products and the content of its document without prior notice.
Please
check
on a regular basis to download the latest document and software updates.
Contact information
For information on advanced corrective maintenance:
• contact your Certied Provider or your L-Acoustics representative
• for Certied Providers, contact the L-Acoustics customer service:
Symbols
The following symbols are used in this document:
This symbol indicates a potential risk of harm to an individual or damage to the product.
It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of
the product.
This symbol noties the user about instructions that must be strictly followed to ensure proper installation or
operation of the product.
This symbol noties the user about complementary information or optional instructions.
SB18 IIi owner's manual (EN) version 1.0
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