Line out
Control volume from your AVR or amplifier (Fixed line-out level)
Set Port’s line-out level to Fixed if you want to control the volume exclusively from your AVR
or amplifier. You won’t be able to use the Sonos app to adjust the volume or equalization
settings.
Control the volume from Sonos (Variable line-out level)
When Port’s line-out level is set to Variable, you can use the Sonos app to adjust the volume.
1. Adjust your AVR or amplifier’s volume to your typical listening volume.
2. Make sure the line-out level is set to Variable. If it’s not, you’ll need to change it. (Go to
> System, choose Port, and choose Variable for the Line-Out Level.)
3. Use the Sonos app to adjust the volume so you can hear music on your Sonos system. It
may need to be turned up fairly high.
4. Readjust the volume on your AVR or amplifier so it falls within your typical listening range.
Use Sonos to control the volume on your home theater or amplifier
When Port’s line-out level is set to Pass-Through, Port stays at a fixed volume and sends
volume commands to your amplifier. You can control volume using the Sonos app, a universal
remote, or your voice if you have a voice assistant enabled.
Note: Make sure your amplifier supports Pass-Through. If you set the line-out level to Pass-
Through and your amplifier doesn’t support it, you won’t be able to control the volume.
Change stereo to mono
Port plays audio in stereo by default. You can change the sound settings for the room
associated with the Port so it plays in two mono channels when playing music.
1. Go to > System, and select Port.
2. Select Advanced Audio > Stereo/Mono, then choose an option.
Learn more
Go to > System, choose Port, and choose Fixed for the Line-Out Level.
Go to > System, choose Port, and choose Pass-Through for the Line-Out Level.