Dolby Laboratories SB218XL Manuel utilisateur
Dolby Speaker SB218XL
Owner's Manual
3 March 2022
Issue 1 Part number: 8800302
Notices
Copyright
© 2022 Dolby Laboratories. All rights reserved.
Dolby Laboratories, Inc.
1275 Market Street
San Francisco, CA 94103-1410 USA
Telephone 415-558-0200
Fax 415-645-4000
http://www.dolby.com
Trademarks
Dolby and the double-D symbol are registered trademarks of Dolby Laboratories.
The following are trademarks of Dolby Laboratories:
Dialogue Intelligence™
Dolby®
Dolby Advanced Audio™
Dolby Atmos®
Dolby Audio™
Dolby Cinema®
Dolby Digital Plus™
Dolby Digital Plus Advanced Audio™
Dolby Digital Plus Home Theater™
Dolby Home Theater®
Dolby Theatre®
Dolby Vision®
Dolby Vision IQ™
Dolby Voice®
Feel Every Dimension™
Feel Every Dimension in Dolby™
Feel Every Dimension in Dolby Atmos™
MLP Lossless™
Pro Logic®
Surround EX™
All other trademarks remain the property of their respective owners.
Patents
THIS PRODUCT MAY BE PROTECTED BY PATENTS AND PENDING PATENT APPLICATIONS IN THE UNITED
STATES AND ELSEWHERE. FOR MORE INFORMATION, INCLUDING A SPECIFIC LIST OF PATENTS PROTECTING
THIS PRODUCT, PLEASE VISIT http://www.dolby.com/patents.
Product model
THIS DOCUMENTATION APPLIES TO MODEL: CID1032.
Limited warranty and warranty exclusions
THE LIMITED WARRANTY AND WARRANTY EXCLUSIONS MAY BE FOUND AT THE FOLLOWING URL: https://
www.dolby.com/us/en/about/warranty-and-maintenance-policies.html
Notices
Dolby Speaker SB218XL Owner's Manual 2
Issue 1 Part number: 8800302 3 March 2022
Contents
1 Important safety and regulatory information............................................................................................4
2 Introduction to Dolby Speaker SB218XL.................................................................................................... 7
2.1 About this documentation....................................................................................................................8
2.2 SB218XL key features and benefits.......................................................................................................8
2.3 Selecting the wire for the SB218XL.......................................................................................................9
2.4 Installing Speaker SB218XL in a typical auditorium ........................................................................... 9
2.5 Additional information..........................................................................................................................10
2.6 Contacting Dolby .................................................................................................................................. 10
3 Assembling Dolby Speaker SB218XL.......................................................................................................... 11
3.1 Assembling and installing Dolby Speaker SB218XL.............................................................................12
3.1.1 Securing an SB218XL cabinet......................................................................................................... 12
3.1.2 Stacking two SB218XL speakers..................................................................................................... 14
3.2 Connecting electrical components ......................................................................................................15
4 Dolby Speaker SB218XL specifications.......................................................................................................19
4.1 SB218XL specifications......................................................................................................................... 20
4.2 Dolby Speaker SB218XL dimensions.................................................................................................... 21
5 Dolby Speaker SB218XL digital signal processing requirements.............................................................. 22
5.1 SB218XL digital signal processing requirements................................................................................. 23
6 Setting system limiters................................................................................................................................24
7 Documentation revision history................................................................................................................. 26
Contents
Dolby Speaker SB218XL Owner's Manual 3
Issue 1 Part number: 8800302 3 March 2022
1
Important safety and regulatory information
Caution:
This symbol that appears on the unit and/or instruction manual is intended to alert the user to the
presence of important safety operating and maintenance instructions.
Warning:
This symbol that appears on the unit and/or instruction manual is intended to alert the user to the
presence of uninsulated "dangerous" voltage within the product enclosure that may be of suicient
magnitude to constitute a risk of electric shock to persons.
High temperature warning:
This symbol that appears on the unit and/or the instruction manual is intended to alert the user that
the item can be hot and that care must be taken accordingly.
Safety
INSTALLER ASSUMES ALL RESPONSIBILITY AND LIABILITY FOR THE INSTALLATION OF
THIS PRODUCT.
No information contained in this guide is intended as a warranty on the part of Dolby.
Anyone using this information assumes all liability arising from its use. Product
abuse, use of the product not in accordance with Dolby instructions, or use in an
application for which the product has not been designed is not covered under any
Dolby warranty, nor is Dolby liable for any loss or damage.
Installation must be performed by qualified, licensed, and insured installers, and
installed in accordance with all laws, rules, and regulations applicable to the
installation site. Failure to do so could result in serious personal injury or even death.
Prior to installing this product, read and completely understand the installation
instructions. You must read these instructions to prevent personal injury and
property damage. Keep the installation instructions in an easily accessible location
for future reference.
A licensed professional engineer must approve the placement and method of
attachment to the building structure prior to the installation of the system.
All information presented herein is based upon materials and practices common to
North America and may not directly apply to other countries because of diering
material dimensions, specifications, and/or local regulations. Installers in other
Important safety and regulatory information
Dolby Speaker SB218XL Owner's Manual 4
Issue 1 Part number: 8800302 3 March 2022
countries should consult with appropriate engineering and regulatory authorities for
specific guidelines.
Any supplied rigging hardware is intended only for use with the specified speaker(s).
The installer assumes all risk of loss and/or injury arising out of the use of the
supplied rigging hardware with any other speaker. All other rigging is considered part
of the venue and/or installer-supplied equipment and is not addressed in this guide.
This guide is not a comprehensive source for rigging in general. Installer assumes all
responsibility for ensuring that accepted rigging and safety practices are employed.
Installer assumes all responsibility for the appropriate use of Dolby supplied rigging
hardware and follows at a minimum all applicable laws, rules, and regulations in
force for each venue.
Dolby is not responsible for the application of its products for any purpose or the
misuse of this information for any purpose. Furthermore, Dolby is not responsible for
the abuse of its products caused by avoiding compliance with inspection and
maintenance procedures or any other abuse.
Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus that produce heat.
Storage temperature: -4 to +140°F (-20 to +60°C). The products covered by this
manual are not intended for use in high-moisture environments. Moisture can
damage the product and cause corrosion of electrical contacts and metal parts. Avoid
exposing the speakers to direct moisture. Keep speakers out of extended or intense
direct sunlight. Premature product failure or serious personal injury could occur if
this product is used outdoors or in wet indoor environments.
This product is intended for indoor use only.
Do not block any ventilation openings. Install in accordance with the instructions as
detailed in this manual and the Product Information document.
Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way.
This product may require installation in a restricted access location. Please refer to
this manual and to the Product Information document.
Caution: Use proper liing techniques when working with
heavy objects to avoid personal injury. Always be careful
when moving the SB218XL and employ at least two people
when attempting any relocation of the speakers.
Caution: Vibration from this type of speaker system may
cause cabinets to shi. Failure to secure the bottom speaker
cabinet to the building structure may result in the speaker
system tipping or falling, which may cause damage or injury.
Caution: Hearing damage can occur by prolonged exposure to
excessive sound pressure level (SPL); the speaker is easily
capable of generating SPL suicient to cause permanent
hearing damage to performers, production crew, or audience
members. Caution should be taken to avoid prolonged
exposure to SPL in excess of 90 dB.
Caution: Troubleshooting must be performed by a trained
electrician. To reduce the risk of electric shock, do not attempt
to service this equipment unless you are qualified to do so.
Dolby Speaker SB218XL Owner's Manual 5
Issue 1 Part number: 8800302 3 March 2022
High temperature warning: The speaker system may reach
elevated temperatures during operation. Always remove all
drive signals and allow ample time for the system to cool
down prior to handling.
EU environmental regulations/compliance and product disposal information
Restriction of Hazardous Substances Directive (RoHS): All Dolby products comply with the
requirements of the EU RoHS Directive. This product is electronic equipment and should be disposed
of in accordance with all applicable laws.
Do not dispose as household waste. Do not dispose of the product in a fire. Please dispose of this
product by taking it to your local electronic waste collection point or recycling center. For information
regarding where to recycle electronic equipment, contact your local dealer. For additional information
regarding Waste Electrical and Electronic Equipment (WEEE) and product disposal go to http://
www.dolby.com/us/en/about/environmental-commitment.html.
Russian environmental regulations and compliance
This product complies with Russian EAC RoHS requirements.
Important safety and regulatory information
Dolby Speaker SB218XL Owner's Manual 6
Issue 1 Part number: 8800302 3 March 2022
Caution:
2
Introduction to Dolby Speaker SB218XL
The Dolby Speaker SB218XL (also referred to as SB218XL in this manual) is designed to meet the needs
of high-performance Low Frequency Eects (LFE) channels in large Dolby Atmos or premium large
format (PLF) cinemas. The SB218XL delivers extended low-frequency response and high output, filling
large theaters with solid low-frequency impact to every seat in the venue. With intuitive ergonomic
design and features, the SB218XL enables quick, easy installation and service. Built on the foundation
of the Dolby industry-leading system design and support philosophy, the SB218XL provides elevated
premium large format (PLF) performance and streamlines speaker integration.
Figure 1: Dolby Speaker SB218XL
This chapter covers:
•About this documentation
•SB218XL key features and benefits
•Selecting the wire for the SB218XL
•Installing Speaker SB218XL in a typical auditorium
•Additional information
•Contacting Dolby
Introduction to Dolby Speaker SB218XL
Dolby Speaker SB218XL Owner's Manual 7
Issue 1 Part number: 8800302 3 March 2022
2.1 About this documentation
This documentation provides the key features and benefits of the Dolby Speaker SB218XL and shows you
how to install the system in a typical cinematic exhibition environment.
2.2 SB218XL key features and benefits
Dolby Speaker SB218XL is a single enclosure, dual-chamber, dual-driver, high-performance LFE subwoofer
designed to produce low frequencies.
Figure 2: Dolby Speaker SB218XL
• Contains two 18-inch woofers that can be driven in parallel, or driven individually to maximize available
amplifier power.
• Each 18-inch driver is contained in an independent chamber within the cabinet that provides improved
performance and reliability.
• The advanced input plate incorporates a unique flip-card printed circuit board that enables electrical
routing for parallel wiring of the drivers powered from a single amplifier channel, or individual wiring to
the amplifier channel on each driver. With the SB218XL flip card, you can select either biamplifier mode or
single-amplifier mode.
• Rubber feet on the bottom of the cabinet provide vibration control.
• Integrated handles on the sides of the speaker cabinet are positioned at the center of gravity to improve
safety and comfort during handling and installation.
• Integrated mounting points are provided for using tie plates (BKT.136, sold separately) when coupling two
SB218XL cabinets together safely and securely in a stacked configuration.
• BKT.FLR floor bracket kit (sold separately) enables secure installation to the building structure. The kit
includes two brackets and four M10 washers.
• The advanced input plate features a high-current, spring-loaded terminal block, which enables quick
installation with no crimp tools or spade lugs needed, vastly simplifying installation.
Related information
SB218XL key features and benefits
Additional information on page 10
Selecting the wire for the SB218XL on page 9
Introduction to Dolby Speaker SB218XL
Dolby Speaker SB218XL Owner's Manual 8
Issue 1 Part number: 8800302 3 March 2022
Securing an SB218XL cabinet on page 12
2.3 Selecting the wire for the SB218XL
It is important that you select the correct wire gauge for the SB218XL.
Typically, no more than 0.5 dB (or 11%) of power should be lost in the cabling. The SB218XL input plates
accept an American Wire Gauge (AWG) of 18 AWG to 6 AWG (1 mm2 to 16 mm2). Typically, we recommend a
wire gauge of 14 AWG to 10 AWG (2.5 mm2 to 6 mm2).
Note: The input terminals are marked with indicators to show the polarity. Per International
Electrotechnical Commission (IEC) standards, a positive voltage on the positive marked input results
in the transducers moving outward. You must verify the positive and negative markings for each
respective product. Always tie the cable down to the available hardware to minimize any buzzing or
pullouts. If possible, aer wiring is completed, play sound through the speaker to identify any
connection issues, buzzing, or rattling.
Related information
Connecting electrical components
Connecting electrical components on page 15
SB218XL key features and benefits
SB218XL key features and benefits on page 8
2.4 Installing Speaker SB218XL in a typical auditorium
In a typical auditorium, the SB218XL is installed at the front of the auditorium, near ground level, and equal
with the screen plane.
The following figure shows the placement of the speaker, as indicated in the Dolby Atmos Specifications.
When multiple screen subwoofers are used, closely clustering the cabinets can increase the eiciency
through mutual coupling, as shown in this figure. If a single cabinet or cluster is used, it should be placed
near screen center, but asymmetrically with respect to the center of the room to minimize stimulation of
standing waves (room modes). Other configurations are also acceptable, such as uniformly spacing multiple
cabinets along the front wall to improve coverage.
Figure 3: Typical auditorium installation
The .GLL format file for soware simulation modeling
There is a .GLL file that you can use to simulate SB218XL in acoustical simulation soware. You can
download the .GLL file at https://www.dolby.com/us/en/professional/cinema/products/SB218XL. To run
the .GLL file, use EASE or EASE Focus soware. EASE Focus soware is free and can be downloaded from
https://focus.afmg.eu/index.php/fc-downloads-en.html.
Selecting the wire for the SB218XL
Dolby Speaker SB218XL Owner's Manual 9
Issue 1 Part number: 8800302 3 March 2022
Following is a description of the SB218XL .GLL file:
•SB218 XL .GLL file
The speaker entry point into the simulation is at the bottom of the speaker. For correct simulation, place
the height entry point (z axis) at the platform that is attached to the building structure or the auditorium
floor height.
2.5 Additional information
Additional information regarding the SB218XL is available.
• System weight for stability calculations is approximately 94.1 kg (207.5 lb).
• Amplifier selection is aided by additional data, as indicated in the SB218XL specifications. (See the link at
the end of this section.)
• The power-draw specification provides the actual power draw in watts at the rated Vrms in the design,
instead of calculated power. This can aid in optimizing amplifier power budgets, as the measured power
is almost always lower than calculated power (sometimes significantly).
• The maximum voltage peak specification is useful for selecting an amplifier that has a voltage rail at or
above the rating for the speaker maximum dynamic performance. Some amplifier companies provide this
data in their respective technical data sheets (or provide the data by request).
• Wire gauge selection should always use industry-standard practice based on the speaker rated ohms and
cable length. Typical maximum acceptable power loss is 0.5 dB, or less than 11%.
Related information
Connecting electrical components
SB218XL specifications
SB218XL key features and benefits
SB218XL key features and benefits on page 8
2.6 Contacting Dolby
You can contact Dolby Cinema Solutions and Support using email or regional telephone numbers. You can
also access documentation by visiting the Dolby customer portal.
Contact Dolby Cinema Solutions and Support
• Send an email to cinemasupport@dolby.com.
• Call:
AMERICAS: +1-415-645-4900
ASIA, CHINA, and PACIFIC RIM: +86-400-842-4894
EMEA: +44-33-0808-7700
JAPAN: +81-3-4520-9798
Access documentation
Visit https://customer.dolby.com.
Submit feedback about this documentation
Send an email to documentation@dolby.com.
Introduction to Dolby Speaker SB218XL
Dolby Speaker SB218XL Owner's Manual 10
Issue 1 Part number: 8800302 3 March 2022
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