FAQ
11.1
Multichannel system
setup
In cases where you use more than one
pair of BeoLab 90’s in a configuration,
there are some recommendations that
should be followed in order to facilitate
daily use.
11.1.1
Bang & Olufsen
television as source
As described in Section
, a
current Bang & Olufsen television can
automatically switch BeoLab 90
Presets as part of the Speaker Group
function. However, it should be noted
that a given Speaker Group in the
television sends only one Speaker
Preset value on its Power Link outputs
to all loudspeakers connected to the
television. This means that the preset
identification numbers in all BeoLab
90’s must match for a given
configuration corresponding to a
Speaker Group in the television.
11.1.2
Third-party device as
source
When using a third-party multichannel
device as a source for more than one
pair of BeoLab 90’s, each Master-Slave
pair of loudspeakers should be
configured correctly for a given source.
The resulting parameters should be
saved to a Preset that is then triggered
by the appropriate input. See Section
for more
information.
11.2
Does BeoLab 90 support
DSD?
DSD and DSD over PCM (DoP) are not
currently supported by BeoLab 90. In
order to play DSD audio files, it is
therefore necessary to convert to PCM
in the audio player before sending the
signal to the loudspeakers.
Note that, since the BeoLab 90 audio
signal path contains a significant
amount of digital signal processing
(DSP) which is performed on linear PCM
signals, a conversion of DSD to PCM is
required somewhere in the audio
chain. Placing this conversion process
ahead of the loudspeakers’ inputs
gives the user the option to choose his
or her preferred filter for the process.
11.3
Does BeoLab 90 support
DXD?
DXD is not currently supported by
BeoLab 90, since its digital inputs will
not operate at sampling rates above
216 kHz.
In order to play DXD files on the
BeoLab 90, the audio signal will either
have to be downsampled to 192 kHz
(maximum) or converted to analogue
in advance of sending the signals to
the loudspeakers’ inputs.
11.4
Why does the BeoLab 90
sound “different” when I
switch to watching
television?
Some features of the BeoLab 90 are
disabled when they are connected to
current Bang & Olufsen sources. This is
to ensure that similar audio processing
is not performed twice. There are
cases, however, where although two
processes are similar, they are not
identical. For example, it may be the
case that the bass or treble
adjustments in the BeoLab 90 do not
have the same frequency responses as
those in the audio source. For more
information about this, please see
Section
It may also be the case that the
adjustment of some of these
processors are different in the
loudspeakers and the source. For
example, if the bass is increased in the
loudspeakers, and then disabled
because the Power Link input is
chosen, there will be a resultant
change in timbre of the loudspeakers.
There may also be instances where a
Bang & Olufsen source automatically
changes the latency mode of the
BeoLab 90’s in order to preserve lip
sync or synchronisation with multiroom
systems. This will also have a
potentially audible effect on the audio
quality of the loudspeakers.
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