Movie only setup through the LFE input.
This dedicated line level input is specifically for the LFE (Low Frequency Effects) output from a surround sound A/V 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 will not be affected by the frequency or slope settings which apply only to the Left and Right channel line inputs.
Once your subwoofer is connected and powered up it needs to be integrated into your home cinema system. To do this you will need to follow the
If you are using full range speakers set the speaker size to ‘large’. Use the processor’s controls to adjust the level of the subwoofer at the same time as setting each of the channel levels.
Music only setup through the Left/Right inputs.
To increase the
the power is switched on it needs to be acoustically integrated into your existing system. To do this you will need to use the volume, frequency and phase controls on the subwoofer’s remote control. The remote control allows you to do this whilst seated in your normal listening position.
First select the subwoofer
Select a piece of music that you are familiar with which has a constant, repetitive bass line. Start with the level and frequency controls at the middle positions and the phase control set to 0. Adjust the level control until you are happy with the low frequency levels when compared with the main speakers. Now adjust the frequency control so that there is no obvious change in the level of the sound from very low frequencies to higher frequencies. Adjust the polarity and the phase control to achieve the smoothest integration between the subwoofer and the main speakers. KEF recommend you take some time making fine adjustments to the controls, whilst listening to a varied selection of music, until you are satisfied with the sound balance.
Once finished it is worth pressing and holding an available preset so that all the current settings are saved into that preset. These settings can then be recalled at any time by pressing the same preset button.
Combined movie and music setup.
The Reference Series 209 subwoofer can be used for both main speaker low frequency extension and the LFE channel reproduction for a surround sound system.
Set the subwoofer up as described in section ‘Music Only Setup’. With the subwoofer correctly set up for stereo use, connect the LFE output from your surround processor to the LFE input of the subwoofer. Without making any adjustments to the subwoofer’s controls, including the volume level, follow the
Finally, separate EQ presets can be applied for both the stereo and LFE inputs (as detailed in ‘Preset Equalization options’, page 22).
Connecting to the speaker inputs (high level).
Speaker level or line level inputs are available to allow flexibility in
The speaker input terminals will accept bare wire, spade or 4mm connectors. Most good quality loudspeaker cables have some indication, such as colour coding or ‘ribbing’ on the insulating material, indicating which conductor is ‘+’ or positive. Connection to the subwoofer can then be made as follows:
The left channel amplifier output terminal marked ‘+’ or coloured RED connects to the left subwoofer speaker input terminal marked ‘+’. The left channel amplifier output terminal marked
Bare wire connections are the simplest to achieve and involve stripping 12.5mm (1.2in.) of insulation to expose the loudspeaker wire core. (You should twist together, using clean fingers, the ends of each
KEF recommends that high quality loudspeaker cable be used for connecting to your Reference Series Model 209 subwoofer high level inputs. It is good practice to keep the cables as short as possible.
Be aware that a higher quality run of cable will always give a more rewarding presentation than multiple runs of an inferior cable.
Poor quality cables can seriously compromise the overall sound of your
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