Caution: Always be careful when moving the CS128LF or the assembled Dolby Speaker System
128, and employ at least two people when attempting any relocation of the loudspeakers, as
there is danger of tipping if the system is not secured to the building structure.
Figure 7: Dolby Speaker System 128 screen planes
GLL format files for software simulation modeling
There are
.GLL
files that you can use to simulate the Dolby Speaker System 128 in acoustical simulation
software. You can download the
.GLL
https://www.dolby.com/us/en/professional/cinema/products/
. To run the
.GLL
files, use EASE or EASE Focus software. EASE Focus software is free, and can be
downloaded from
https://focus.afmg.eu/index.php/fc-downloads-en.html
.
Dolby Speaker System 128 .GLL file descriptions
• CS128LF GLL
• The file-name to create the Dolby Speaker System 128 screen channel is
Dolby_CS128LF
.
• For correct simulation, place the LF entry point (z axis) at the height of the CS128LF speaker cabinet
base in the auditorium.
• CS128MH GLL
• To finish the Dolby Speaker System 128 screen channel, use the
Dolby_CS128MH
file. The
loudspeaker entry point into the simulation is at the acoustic center of the system.
• Place the CS128MH height entry point (z axis) at 1.6 m (5.25 ft) above the height entry point of the
CS128LF.GLL. The x and y axes should match the companion CS128LF.
• The CS128MH.GLL file can then pan +/-20 degrees horizontally, and tilt +/-15 degrees, independent of
the CS128LF, as it would in a typical configuration.
Introduction to Dolby Speaker System 128
Dolby Speaker System 128 Owner's Manual
12
8800293 Issue 2
27 October 2021