Focal Cub2 Manual Del Usuario página 13

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13
Positioning
Contrary to conventional hi-fidelity loudspeakers which
have to be placed at a reasonable distance from the walls and
the listening area corners, we advise you to place your Cub
subwoofer in a corner of the listening area (fig. D, E). If the
subwoofer is placed against only one wall or too far from the
walls, the very large wavelength of the bass delivered by the
subwoofer will excite the resonance of the listening room in
an unpredictable way. Frequency response linearity will then
be damaged and therefore the sound rendition will be affected
(lack of depth, "boomy sound", poor bass, difficult or impossible
coupling with the other used loudspeakers).
2
If you put the Cub
in a corner, the resonant frequencies
of the room will be more linear and predictable. In such a
configuration, you will not only benefit from an optimum
perception of the bass frequency range but the bass level will
also be increased by 6dB (fig. F).
If a particular disposition of the room does not allow to place
the subwoofer in a corner, we recommend you to try different
configurations until you find the best possible disposition.
Generally, the subwoofer should be placed along the front wall
of the listening room.
Because the bass frequency waves are omni-directional, the
sound dispersion will not be affected if a piece of furniture or
an object is placed between the subwoofer and the listening area.
Choice of cables
2
When the Cub
is connected to the amplifier through the "high
level" inputs, it is recommended to use standard loudspeakers
cables with 1.5mm² minimum section. When the Cub
connected to the amplifier through stereo "line level" or LFE
inputs, use a RCA/RCA shielded cable of the required length.
In every case we advise you to ask your retailer. He will help you
find the solution meeting your needs.
2
D
E
Niveau de grave
+6 dB
2
is
+3 dB
0 dB
20 Hz
Zone B
Zone C
F
Zone A
Zone B
Zone C
Zone A
150 Hz

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