KEF REFERENCE 209, Installation Manual

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Control Functionality
Phase.
Adjusts the phase of the subwoofer output
relative to your main speakers from 0 to 180
degrees in 5 degree steps.
Level.
This decreases or increases the subwoofers
volume relative to the main speakers.
Slope.
Switches the Low Pass Filter slope between 12
(shallow) and 24dB per octave (steep). This can
be set to allow the best integration with your
other speakers. Frequency and slope only apply
to the Left and Right line level inputs. The LFE
inputs are fixed at a cut off frequency of 200Hz
and a slope of 24dB/Octave so that the settings
do not interfere with the bass management
setting on an external A/V receiver.
Frequency.
Increases or decreases the internal low pass
filter cut off frequency in the subwoofer
between 40Hz and 140Hz so that it integrates
smoothly with the main speakers. It is only
applied to the Left and Right inputs and is not
applicable to the LFE input where it is assumed
an external surround sound processor is
controlling the bass management externally
Subwoofer/Satellite Integration : Correct
Subwoofer/Satellite Integration : Too Low.
Increase the frequency.
Subwoofer/Satellite Integration : Too High.
Reduce the frequency.
Music and Cinema Setting
The Music and Cinema Switch changes the
internal EQ settings on the Reference Series
208 subwoofer. Music is a flat response as
shown below. Cinema adds a mid-bass boost
of 6dB.
This EQ is applied for both the Left and Right
and the LFE inputs.
MUSIC Standard Flat Response
CINEMA Mid Bass Lift
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