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Operation
Dynaudio Sub 250 9
Connecting loudspeakers
In Home Cinema systems the bass management - meaning the distribution of the low
frequencies to the subwoofer and the speakers - is handled by the settings of the
processor/receiver. If your equipment does not provide bass management, or if you
want to use the Sub 250 together with a common stereo, the low frequency
adjustment of the connected speakers can be managed by the Sub 250. This not only
improves the sound by matching subwoofer and speakers, but also by freeing the
power amplifier and connected speakers from the effects of sound-compromising
bass reproduction. Also refer to the further explanations in the chapter “Connecting
the subwoofer” on page 7.
To connect speakers:
1. Connect the subwoofer with the processor/receiver as explained in “Connecting a
single subwoofer” on page 8.
2. From the Subwoofer SAT Output connect a RCA cable to the Main In of the
power amplifier you use for your speakers.
Note: Stereos do not have a LFE channel. In this case just connect the front outputs
of the processor/receiver (Front Out/Pre Out) with the subwoofer.
The signals connected to the SAT/SUB Input are provided at the SUB I/O -
LFE/To Slave output for connecting another subwoofer. See page 8 to learn
more about connecting multiple subwoofers.
Switching the subwoofer on/off
(POWER ON/OFF)
Once you have ensured yourself that all necessary connections have been made, the
subwoofer and the connected components can be switched on.
X Switch the subwoofer ON with the main POWER switch on the rear panel.
The status LED on the rear of the subwoofer will light up red.
Automatic mode
After switching on the Sub 250 is in Automatic mode:
• When a music signal is detected, the internal amplifier is activated automatically.
The status LED on the rear of the subwoofer will light up green.
As long as a signal is available on the subwoofer’s input, it will remain switched on.
• After 15 to 20 minutes of not sensing any input signal, the subwoofer will switch
itself to Mute mode automatically.
The status LED on the rear of the subwoofer will light up red.
Note: To switch the subwoofer completely off, set the main POWER switch to the
OFF position.
LFE/SUB Out
Front Out/
Pre Out