Dolby Laboratories 118-I User manual

Dolby 118-I
Owner's Manual
1 January 2023
Issue 1

Notices
i
Notices
Copyright
© 2023 Dolby Laboratories. All rights reserved.
Dolby Laboratories, Inc.
1275 Market Street
San Francisco, CA 94103-1410 USA
Telephone [phone]
Fax [phone]
http://www.dolby.com
Trademarks
Dolby and the double-D symbol are registered trademarks of Dolby
Laboratories, Inc.
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.
Product model
This documentation applies to: Dolby 118-I.
Limited warranty and warranty exclusions
THE LIMITED WARRANTY AND WARRANTY EXCLUSIONS MAY BE FOUND AT THE
FOLLOWING URL: http://www.dolby.com/us/en/about/warranty-and-maintenance-policies.html
Dolby 118-I Owner's Manual Issue 1
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Dolby 118-I Owner's Manual Issue 1 ii
Table of Contents
Chapter 1 Introduction .................................................................................................. 1
1.1 118-I Overview ...................................................................................................................1
1.2 118-I Specifications ............................................................................................................1
1.3 118-I Processor Settings ....................................................................................................2
Chapter 2 Installing the Dolby 118-I............................................................................. 3
2.1 Rigging the 118-I for Overhead Installations ......................................................................3
2.1.1 Tools Required..........................................................................................................3
2.1.2 Installing the 118-I.....................................................................................................3
2.1.3 Connecting the Safety Cable ...................................................................................4
2.2 Connecting Audio ...............................................................................................................5
2.3 Finalizing the Installation ....................................................................................................6
2.4 Dimensions.........................................................................................................................6
Appendix A Environmental Compliance and Regulations......................................... 7
A. 1 EU Environmental Regulations and Compliance...............................................................7
A. 2 Russian Environmental Regulations and Compliance.......................................................7
Appendix B Setting System Limiters........................................................................... 9
B. 1 Setting up System Limiters................................................................................................9

Important safety and regulatory information
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 differing material dimensions,
specifications, and/or local regulations. Installers in other countries should consult with
appropriate engineering and regulatory authorities for specific guidelines.
Any supplied rigging hardware is intended only for use with the specified loudspeaker(s). The
installer assumes all risk of loss and/or injury arising out of the use of the supplied rigging
hardware with any other loudspeaker. 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.
Make sure that no water pipes, natural gas lines, electrical wire, or conduit are present where the
speaker is to be installed. Cutting or drilling into water pipes, natural gas lines, electrical wire, or
conduit could cause serious personal injury or property damage.
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.
Proper selection of mounting hardware is not included; proper assembly and installation of
mounting hardware, including, but not limited to, selection of appropriate weight-bearing support
and bracket use, are the exclusive responsibility of the installer. Dolby disclaims any liability,
including damage or injury, for the use of mounting hardware supplied by any party other than
Dolby. Any modification to
Important safety and regulatory information
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the speaker system hardware provided by Dolby (for example, mounting by drilling holes
into the speaker system) will render the product warranty null and void.
Caution: Use proper lifting techniques when working with heavy objects to
avoid personal injury.
No open flame sources should be placed on or near the apparatus. Do not install near any heat
sources such as radiators, heat registers, stoves, or other equipment that produces 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.
High temperature warning: Loudspeaker 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.
Hearing damage can occur by prolonged exposure to excessive sound pressure level (SPL);
the loudspeaker is easily capable of generating SPL sufficient 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.
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.
Do not install near any heat sources, such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
When a rolling cart is used, use caution when moving the cart/apparatus combination to avoid
injury.
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.
Warning:
To reduce electric shock, do not expose the apparatus to dripping or splashing; no objects
filled with liquids, such as mugs, shall be placed on the apparatus.
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.
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.
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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's enclosure that may be of
sufficient 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.
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:
dolby.com/us/en/about/environmental-commitment.html.
Russian environmental regulations and compliance
This product complies with Russia EAC RoHS requirements.
Important safety and regulatory information
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Dolby 118-I Owner's Manual Issue 1 1
Introduction
1.1 118-I Overview
Figure 1‐1
Figure 1-1 Dolby 118-I
1.2 118-I Specifications
Following are the 118‐I general specifications:*
1
•Operating range: 35 Hz to 160 Hz 1
•Sensitivity 1Watt @ 1 M: 99 dB 2
•Power handling: 600 watts 3
•Maximum SPL (calculated) at 1 meter: 127 dB continuous/133 dB peak
•Nominal impedance: 8 ohms
•Coverage angle: Omnidirectional
•Driver: one 18‐inch low‐frequency woofer
•Dimensions:
oWidth: 19.7 inches (500 millimeters)
oHeight: 20.24 inches (514 millimeters)
oDepth: 34.7 inches (882 millimeters)
•Net weight: 82 pounds (37.2 kilograms)
•Shipping weight: 97 pounds (44 kilograms)
* Dolby reserves the right to make changes to existing products without notice.
•6 dB in half-space conditions using required processing
•Measured with 12 dB crest pink noise @ 2.83 Vrms in ground plane conditions with required
HPF and LPF. Sensitivity interpolated to 1m
•6 dB crest pink noise for one hour with required HPF and LPF, calculated power based on
minimum impedance
The Dolby 118‐I is a high performance flyable subwoofer for use in cinema auditoriums
and professional applications. The unit contains sixteen M10-1.5 rigging points at
convenient locations around the loudspeaker. For mounting to the building structure, you
can attach rigging hardware, as described in Section 2.1.

2Dolby 118-I User’s Guide
Introduction
1.3 118-I Processor Settings
Following are the 118‐I processor settings:
Crossover Section Frequency Slope
Highpass filter 28 Hz 24 dB octave (fourth order) Butterworth
Lowpass filter 80–160 Hz 24 dB octave (fourth order) Butterworth
Limiting Section Threshold/RMS Voltage Attack Release Peak Stop Voltage
See Appendix B64 V ms45720 ms 126 V

Dolby 118-I Owner's Manual Issue 1 3
Installing the Dolby 118-I
2.1 Rigging the 118-I for Overhead Installations
The 118‐I provides sixteen M10-1.5 rigging points to attach installer‐supplied rigging
hardware. There are four rigging points on each of the subwoofer long sides. You can
purchase eyebolts from Dolby or a 3rd party supplier.
2.1.1 Tools Required
•6mm Allen wrench to remove the existing bolts. After removal, you can attach
installer‐supplied rigging hardware or the optional eyebolts to the available
M10-1.5.
2.1.2 Installing the 118-I
Safe overhead rigging practices require an understanding of the proper methods and
are outside the scope of this guide. All installer‐supplied rigging hardware must have a
minimum 5:1 safety factor based on the weight of the 118‐I. You should use only the four
attachment points facing the hanging surface.
Warning: CONSULT A PROFESSONAL MECHANICAL OR STRUCTURAL ENGINEER
TO APPROVE ALL ATTACHMENTS TO BUILDING STRUCTURE. THIS
APPARATUS MUST BE INSTALLED BY LICENSED PROFESSIONAL
INSTALLERS. IF NOT INSTALLED ON THE BUILDING STRUCTURE
PROPERLY, THIS APPARATUS COULD FALL, CAUSING PERSONAL
INJURY OR DEATH. SUSPENSION OF HARDWARE COMPONENTS MUST
BE CALCULATED WITH A GIVEN SAFETY FACTOR TO BE WITHIN THEIR
RESPECTIVE WORKING LOAD LIMITS. INSPECT ALL COMPONENTS
BEFORE INSTALLATION. ALL LOCAL BUILDING AND SEISMIC CODES
MUST BE ADHERED TO.
Warning: THE THREADS OF M10-1.5 INSTALLER‐SUPPLIED RIGGING HARDWARE
THAT ATTACH TO THE APPARATUS MUST EXTEND A MINIMUM OF 1.25‐
INCHES (31.8 mm) INTO THE CABINET BUT NOT EXCEED 2.25‐INCHES
(57.2 mm). HARDWARE MUST HAVE A 5:1 SAFETY FACTOR, OR GREATER
IF A HIGHER REQUIREMENT IS MANDATED PER LOCAL LAWS. THE
M10-1.5 ON THE CABINET SIDES SHOULD NOT BE USED FOR
EYEBOLTS THAT PULL AT AN ANGLE GREATER THAN 45 DEGREES TO
THE LOAD. HARDWARE MUST BE SECURELY TIGHTENED AND THE
WEIGHT EVENLY DISTRIBUTED THROUGH THE FOUR ATTACHMENT
POINTS.
PREVIOUS SLS VERSIONS OF THIS PRODUCT USED IMPERIAL
MEASUREMENTS AND 3/8”-16 RIGGING POINTS & EYEBOLTS.
2

4Dolby 118-I User’s Guide
Installing the Dolby 118-I
The following figure shows examples of the 118‐I rigging points and flying
options.
Figure 2‐1
Figure 2-1 Rigging Points and Flying Options
2.1.3 Connecting the Safety Cable
After attaching the 118‐I to the building structure, you must connect a secondary safety
attachment point to an independent point on the building structure. Any of the unused
M10-1.5 points are available for attaching an installer‐supplied safety cable. Based on
the weight of the 118‐I, all installer‐supplied safety rigging hardware must have a
minimum 5:1 safety factor, or greater if a higher requirement is mandated per local
laws. Remove all slack to avoid any shock loading of the cable in case of a primary
rigging failure.
Warning: INSTALLER‐SUPPLIED RIGGING HARDWARE MUST HAVE A MINIMUM
5:1 SAFETY FACTOR BASED ON THE WEIGHT OF THE APPARATUS.
YOU MUST SECURELY TIGHTEN THE HARDWARE. REMOVE ALL
SLACK FROM THE CABLE. REPLACE THE CABLE IF IT HAS BEEN
PULLED DUE TO THE FAILURE OF THE PRIMARY RIGGING.
REMOVABLE THREAD LOCKING IS RECOMMENDED ON ALL
FASTENERS.