After the software update of December 2020 the Bass and Treble settings can be adjusted manually.
To be able to do this the device must have at least software version 20463160.
The current software version can be viewed by selecting the device in the Google Home app, then tap Device settings (cogwheel symbol at the top right) and then land on a page where the software version is visible at the bottom.
If the Citation 200 has the latest software version it is possible to adjust the bass and/or treble as shown below.
Adjust bass and treble level
- To adjust the bass level short press the Bluetooth and volume minus button simultaneously until the desired level is reached.
- To adjust the treble level short press the Bluetooth and volume plus button simultaneously until the desired level is reached.
The default setting is level 3 (3 purple LEDs for the bass value and 3 yellow LEDs for the treble value) so you are able to take two steps back and one step forward.