JAMO C 80 Serie Manuel D'utilisation page 17

Cut-off frequency
If the C 80 SUB is connected via an unfi ltered output signal, such as a line pre-out
or speaker output, it is necessary to adjust the cut-off frequency on the subwoofer
to match the bass response of your speakers. If it is connected via a fi ltered output
signal, such as a LFE or 'subwoofer out' , the cut-off frequency should be turned all
the way up, in order to stop the C 80 SUBs cut-off fi lter interfering with the fi lter
built into your decoder/AV receiver.
Auto/On/Off
The Auto/on/off switch offers three settings:
Auto: The Subwoofer will automatically switch on when it detects a signal from
On:
Off:
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the source, and switch into stand-by mode again 20 minutes after the signal
has terminated.
The subwoofer will stay on
The subwoofer will stay in stand-by mode