Installation; Connections; Lfe Input; Digital Input/Output (Digital) - Focal SW 1000 BE Manuel D'utilisation

SW 1000 BE
U s e r m a n u a l
16

Installation

Connections

Low-level inputs on RCA
When using a two-channel, stereo amplifier with preamplifier line outputs, the SW 1000 Be must be
connected through RCA stereo inputs "line inputs Right/Left" (fig. A). This configuration is better than
that of the high-level inputs and will deliver a cleaner sound.

LFE input

When using an audio/video, multi-channel amplifier, the single LFE input of the SW 1000 Be should be
connected to the mono "Subwoofer" output of the audio/video amplifier (fig. B).

Digital input/output (Digital)

Several SW 1000 Be can be digitally connected to greatly increase sound pressure levels. The first
"master" subwoofer receives the analog signal from the source unit and then drives in the digital domain
as many additional "slave" subwoofers as deemed necessary. This permits all the settings and corrections
on the master subwoofer to be systematically applied to the slaves (whose control menus are partially
deactivated). Only gain and phase are accessible. The digital connection is serial from one subwoofer to
the next (fig. C). Volume control of slave subwoofer is synchronized with master subwoofer.

Positioning

Contrary to conventional, hi-fi loudspeakers, which have to be placed at a reasonable distance from the
walls and the listening area corners, we recommend placement of the SW 1000 Be in a corner of the
listening area (fig. E, F). 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 compromised and sound
rendition will be affected (lack of depth, "boomy sound", poor bass, difficult or impossible coupling with
the other loudspeakers). If you put the SW 1000 Be 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 increase by 6dB (fig. D).
If a particular disposition of the room does not allow placement of the subwoofer in a corner, we
recommend that you try different configurations until you find the best possible sound. Generally, the
subwoofer should be placed along the front wall of a listening room. As 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. It is then possible to hide the SW 1000 Be behind a piece
of furniture as long as the bass frequency dispersion is not affected.