How to adjust the Volume, Bass or Treble
Short answer
Adjust the volume, bass and treble by turning the three knobs on top of the speaker. You can also adjust the sound in the the Marshall Voice app.
Volume Control
Adjust the loudness with the volume knob on top of the speaker, or by using the Marshall Voice app. The default or unity level is five (right in the middle).
Bass Control
Adjust the low-frequency audio output by turning the bass knob on top of the speaker or using the Marshall Voice app. The default position is five (right in the middle), also known as flat or unaffected EQ.
Treble Control
Turn the treble knob on top of the speaker or use the Marshall Voice app to adjust the sound for clarity and shrill high frequencies. The default position is five (right in the middle), also known as flat or unaffected EQ.
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