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Rear Panel Information
110V or 240V Voltage Selection Switch.
Please check that the voltage indicated is set
correctly for your country’s mains supply voltage
as this subwoofer comes with a 110V to 115V or
220V to 240V voltage switch.
On/Off switch.
Please turn off your subwoofer during long
periods of non-use.
Speaker/high level input.
Used when the subwoofer is to be driven from
the output of the main speaker power amplifier.
Line input left and right.
These are used to connect the subwoofer to the
line level signal from a pre-amplifier. Please note
that single ended (phono) or balanced (XLR)
connections are available however they must not
be used simultaneously. If only one set of line
outputs is available on your pre-amplifier use Y
connectors to split the L and R signals between
the pre-amplifier and the KEF Reference 208
subwoofer or use the Line level LFE input
described below.
Line input LFE.
This dedicated line level input is specifically for an
LFE (Low Frequency Effects) output from a
surround sound processor. Please note that
single ended (phono) or balanced (XLR)
connections are available however they must not
be used simultaneously. The LFE input to the
subwoofer is not affected by the frequency or
slope controls and it will not, therefore, conflict
with the bass management settings applied by the
external surround sound processor.
Ground Switch.
The default setting is with the Ground Switch IN.
This connects the mains earth to the audio input
circuitry. If, however, there is a buzzing noise,
caused by ground loops between the audio
source equipment and the ground of the
Reference Series 208 subwoofer, then switch the
Ground Switch to OUT.
Auto/Manual Switch.
The default setting is with the Reference Series
208 subwoofer switched into AUTO. This will
automatically put the subwoofer into standby
after approximately 30 minutes of silence. The
subwoofer will return from standby as soon as a
source signal is detected. This function can be
disabled by setting the subwoofer to MANUAL
and using the power switch to turn it on and off.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 32