Hi @gbranam863.
Welcome, thank you for reaching out to Sonos Community since you already tried some troubleshooting steps let me try to assist you.
Here are the settings you can try for your Sonos sub volume.
- Open the Sonos app for iOS or Android.
- From the Settings tab, tap System.
- Under Products, tap the room that your Sub is in.
- Under Sound, tap Sub Audio.
You can adjust the settings listed below. If you’ve added two Subs to a room, each setting will apply to both Subs.
Setting | Description |
---|
Sub | Tap the switch to toggle the Sub audio on or off. |
Sub Level | Use the slider to increase or decrease the volume of the Sub audio. |
Phase Control | Select the phase of the Sub audio to help compensate for weak bass during playback. |
Reset | Tap this to reset all Sub audio settings to their default values. |
Let us know if it works. If you need help with any other information, please be sure to let us know.