10
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Concept R 2
Settings
Setting up the AV receiver
To take full advantage of your Concept R 2 Home
Theatre System with Active Subwoofer, set the
"Speaker Set-up" section of your AV receiver to
"small" or "normal" (not "large") for the five sa-
tellite speakers. This ensures that the speakers
receive the right amount of signal, and that the
subwoofer and front speakers have matching vo-
lumes.
Also in the receiver's "Speaker Set-up" section
(Bass Management and/or Speaker Management),
make sure the subwoofer is set to "On". If you are
given the option of entering a crossover frequen-
cy for the Concept R 2, set this to 150 Hz (if this
is not available, the next best choices are 120 Hz
and 200 Hz).
Setting up the subwoofer
If your system is based around an AV receiver,
set the subwoofer's frequency control to ma-
ximum; the AV receiver automatically deter-
mines the crossover frequency in relation to the
subwoofer's output.
Modern AV receivers can also determine the
subwoofer's phase automatically. This happens
within the receiver's "Speaker Set-up" utility,
which analyses the distance between the diffe-
rent speakers and the listening spot. For this to
work correctly, the subwoofer's own phase switch
needs to be on "0°".
If your system uses an older-model AV receiver
or another type of amplifier without a setting
for the subwoofer distance, you can use the
subwoofer's phase switch to manually adapt the
phase to the other speakers. The goal here is for
all the bass loudspeaker membranes that repro-
duce the frequency range around the crossover
frequency to vibrate in the same direction. If the
phase is set incorrectly, there may be phase can-
cellations between the bass frequencies, i.e., the
bass is quieter and some of the low frequencies
appear to drop out.
If your subwoofer is positioned between the
front speakers, we recommend a phase setting
of "0°" (grey area in the diagram on p. 7); if the
subwoofer is positioned closer to the listening
spot, a phase of "180°" may be more appropriate.
Similarly, the "180°" setting may help to eliminate
bass cancellations if you position the subwoofer
in other areas of the room. As a rule, always set
the phase switch to the position that enables the
best bass reproduction.
The subwoofer's output volume may vary depen-
ding on usage, e.g., home theatre sound system
or music playback. Whereas an action-packed DVD
typically contains very defined sub bass signals,
many music-only sources do not. This is especially
noticeable if your system is calibrated for opti-
mum DVD playback. To find the best compromise
between differing sound sources, use your own
subjective judgement.
Our recommendation is to determine the best
subwoofer volume gradually over time.
Avoid configuring the subwoofer volume automa-
tically via your AV receiver's integrated room ana-
lysis computer (advanced receivers only). Instead,
set the subwoofer level provided in the bass ma-
nagement/speaker management section ("Spea-
ker Set-up") to a high value, such as +8 to +12 dB;
this will guarantee that the subwoofer activates
itself at the right times when in "Auto On/Stand-
by" mode. You can then use the subwoofer's own
level control to experiment with different bass
levels that are suited to your various listening
scenarios.
