Adjusting the Subwoofer Filter

You can use the subwoofer filter setting to control the subwoofer cutoff frequency for each zone, which can enhance the blend of the sound produced by the speakers and the subwoofer. Audio signals above the selected frequency are not passed to the subwoofer.

NOTE: If a DSP setting has been applied to the zone using the Garmin® Audio app, this setting cannot be changed on the stereo.
  1. Select Menu button > SETTINGS.
  2. Select ZONE.
  3. Select a zone.
  4. Select SUB. FREQ..
  5. Select a frequency.
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September 2026