Troubleshooting: Heston 120 sound dull/weird/bad

Push the sound mode button to toggle the sound modes.

Push the bass/treble control knob to toggle between bass and treble and then turn it to adjust. Or check the audio settings in the app.

Make sure that Heston 120 has at least 15 cm of clearance above and on each side, and that nothing is obstructing the sound. If Heston 120 is mounted on the wall, follow the instructions included with the wall mount brackets (wall brackets not included).

Every room has a unique sonic quality that depends on the room size, material, how it is furnished, and where the speaker is placed. Heston 120 comes with a room correction feature that adjusts for these differences for you to make the most of your space with a perfect musical fit.

Set up Room correction in the Marshall app.

A factory reset will reset the soundbar to its original settings, excluding any firmware updates.

Note: This will delete all settings, Playlists, Wi-Fi and Heston 120 will need to be set up again.