Change your sound settings

You can adjust the bass and treble on Google Home devices, Chromecast Audio devices and speakers with Chromecast Built-In. You can find these settings under the Equaliser setting in the Google Home app. 

1. Make sure that your mobile device or tablet is connected to the same Wi-Fi as your Google Home devices, Chromecast Audio devices and speakers with Chromecast Built-In.
2. Open the Google Home app .
3. Tap the Google Home device that you want to adjust.
4. Tap Settings .
5. Under 'Sound settings', tap Equaliser.
6. Move the sliders under 'Bass' and 'Treble' to adjust.