Specifications

Troubleshooting and Technical Information
Dynaudio SUB 300/500 21
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 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 processor/receiver
X Carefully and gradually increase the subwoofer volume level on the processor/
receiver
X Carefully and gradually increase the subwoofer volume level on the subwoofer
LEVEL control.
Troubleshooting and Techni-
cal Information
Problem Cause Solution
The subwoofer switches itself off
although music is being played.
There is hardly any low-frequency signal available. 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 signals are detected.
X Use the temporary manual On facility by briefly
pressing the green I button on the remote
control.
The subwoofer responds intermittently
to remote control commands.
• The remote control battery is becoming weak.
• The remote control eye (either front- or back panel) is
obstructed.
• The subwoofer is in direct, strong sunlight.
X Replace battery.
X Ensure there is a clear line-of-sight from the
remote control to either the front- or back panel
remote receiver. If this is not possible, consider
an IR repeating system which consists of a
separate remote receiver which connects by wire
to a remote control emitter which can be
positioned close to the subwoofer's remote eye.
Consult your Dynaudio dealer for help.
X Avoid placing the subwoofer in strong direct
sunlight.
The subwoofer will not switch on at all. • AC mains cable has become disconnected
(no LEDs are lit)
• Mains switch on the rear is switched to Off
(no LED are 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.