Figure 3: Dolby Atmos installation
2.3.1 Placing the DSR1090 on a wall or ceiling
You can attach the DSR1090 to a wall or ceiling.
For 5.1 or 7.1 Dolby Surround auditoriums, you should follow standard industry practices for speaker
placement and aiming. For Dolby Atmos auditoriums, follow the instructions in the
Dolby Atmos
Specification Guide, which you can download at
https://professional.dolby.com/siteassets/cinema-
products---documents/dolby-atmos-specifications.pdf
.
2.3.2 Determining horizontal aiming for side and rear speakers
For Dolby 5.1 or 7.1 surround installations, there is no requirement for horizontal angling of the side and rear
surrounds when speakers point toward the central listening area (CLA).
For Dolby Atmos installations, to determine the proper horizontal aiming for the side and rear surround
speakers, you need to define a rectangle within the CLA that includes the reference listening position (RLP).
For side and rear surround speakers that are adjacent to the CLA, aim the speakers directly into the
auditorium (that is, 0° from perpendicular), ±10°.
For installations that utilize speaker pairing, splay the paired speakers to improve sound coverage. For all
speaker pairs, we recommend these aiming parameters, which are based on the CLA:
• Aim the forward-paired speaker to the near-side forward corner.
• Aim the rearward-paired speaker to the near-side rear corner.
The following figure is an example of proper horizontal aiming for side and rear speakers.
DSR1090 preinstallation information
Dolby DSR1090 Owner's Manual
9
Issue 1 Part number: 8800304
16 October 2022