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Troubleshooting
Dynaudio Acoustics BM9S 11
Troubleshooting Troubleshooting
There may be various reasons why the subwoofer doesn’t function properly in a
system without it being faulty. The checklist below will help solve problems you may
encounter. Before consulting your Dynaudio Acoustics dealer, check this list first.
Check this first:
X Check if all signal cables are connected properly.
X Check settings in bass management menu of the connected source.
X Carefully and gradually increase the subwoofer volume level on the source.
X Carefully and gradually increase the subwoofer volume level on the subwoofer
Gain control.
Problem Cause Solution
The subwoofer switches itself off while
music is being played.
There is hardly any low-frequency signal available in the
signal. This can happen if the music or movie itself does
not contain very low frequencies (e.g. long dialogues).
X The subwoofer will switch on automatically as
soon as low frequent music signals are detected.
X Switch subwoofer off and on again by means of
the main POWER switch.
The subwoofer will not switch on at all. • AC mains cable has become disconnected
(LED does not lit)
• Mains switch on the back is switched to OFF
(LED does not lit)
Make sure to switch the system off first before
making any changes!
X Reconnect mains cable.
X Switch mains back on.
X Check if all signal cables are connected properly.
The subwoofer will not switch on
automatically.
• No signal is present on either of the subwoofer’s inputs
(LED lights red).
Make sure to switch the system off first before
making any changes!
X Check if all signal cables are connected properly.
X Check if the subwoofer output on the source is
engaged.
Subwoofer is switched on but no sound
from the subwoofer.
• No signal is present on either of the subwoofer’s inputs.
• In the source’s bass-management set-up, subwoofer
has been disabled.
• Subwoofer volume level has been turned down all the
way on the source.
• Subwoofer volume level has been turned down all the
way with the subwoofer’s control.
Make sure to switch the system off first before
making any changes!
X Check if all signal cables are connected properly.
X Check settings in bass management menu of the
source.
X Carefully and gradually increase the subwoofer
volume level on the source.
X Carefully and gradually increase the subwoofer
volume level on the subwoofer Gain control.