Dynaudio SUB 250 COMPACT Troubleshooting, Care and Maintenance, Technical Information/Warranty

Technical Information/Warranty

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:

XCheck if all signal cables are connected properly.

XCheck settings in bass management menu of the connected processor/receiver.

XCarefully and gradually increase the subwoofer volume level on the processor/ receiver.

XCarefully and gradually increase the subwoofer volume level on the subwoofer GAIN control.

Problem	Cause	Solution
The subwoofer switches itself off	There is hardly any low-frequency signal available. This	X The subwoofer will switch on automatically as
although music is being played.	can happen if the music or movie itself does not contain	soon as low frequent signals are detected.
	very low frequencies (e.g. long dialogues).
The subwoofer will not switch on at all.	• AC mains cable has become disconnected	Make sure to switch the system off first
	(LED does not lit).	before making any changes!
	• Mains switch on the rear is switched to OFF	X Reconnect mains cable.
	(LED does not lit).
		X Switch mains back on.
		X Check if all signal cables are connected properly.
The subwoofer will not switch on	• No signal is present on either of the subwoofer’s inputs	Make sure to switch the system off first
automatically.	(LED lights red).	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	• No signal is present on either of the subwoofer’s inputs.	Make sure to switch the system off first
from the subwoofer.	• In the processor or receiver’s bass-management set-up,	before making any changes!
	subwoofer has been disabled.	X Check if all signal cables are connected properly.
	• Subwoofer volume level has been turned down all the
		X Check settings in Bass Management menu of the
	way on the processor/receiver.
		connected amplifier or receiver.
	• Subwoofer volume level has been turned down all the
		X Carefully and gradually increase the subwoofer
	way with the subwoofer’s control.
		volume level on the amplifier or receiver.
		X Carefully and gradually increase the subwoofer
		volume level on the subwoofer GAIN control.

Care and Maintenance

Components of the highest quality are used in your Sub 250. This assures years of trouble free operation. Following precautions should still be made though.

18 Dynaudio Sub 250