Troubleshooting
There may be various reasons why a subwoofer doesn’t function properly in a system without it being faulty. The
checklist below will help solve any problems you may encounter. Before consulting your Dynaudio Professional
dealer, check this list first.
Check this first:
▪ Check if all signal cables are connected properly.
▪ Check settings in the bass management setup of the connected source.
▪ Gradually increase the source subwoofer volume level.
▪ Gradually increase the subwoofer Gain control level.
Problem
The subwoofer switches itself o while music is being played.
Cause
There is little low-frequency content in the signal. This can happen if the music or movie itself does not contain
very low frequencies (e.g. long dialogues).
Solution
The subwoofer will switch on automatically as soon as low frequent music signals are detected. Switch subwoofer
o and on again by means of the main POWER switch.
Problem
The subwoofer will not switch on at all.
Cause
▪ Mains cable has become disconnected (LED is not lit)
▪ Mains switch on the back is switched to OFF (LED is not lit)
Solution
Make sure to switch o the system before making any changes!
▪ Reconnect mains cable.
▪ Switch mains back on.
▪ Check if all signal cables are connected properly.
Problem
The subwoofer will not switch on automatically.
Cause
No signal is present on either of the subwoofer inputs (LED indicates red).
Solution
Make sure to switch o the system before making any changes!
▪ Check if all signal cables are connected properly.
▪ Check that the source subwoofer output is enabled and active.
Problem
Subwoofer is switched on but produces no sound.
20 Professional Audio Subwoofers User manual