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REVIEWER’S GUIDE
31
The power of Revolution’s bass management technology is that it provides more
control over bass than most high-end surround sound receivers. It is possible to set
the crossover at “none” for your full-range front left/right speakers, a 40Hz cross-
over for the surround left/right, a 60Hz crossover for the center, and 80Hz for the
surround center left/right. Even with a complex speaker setup like this, Revolution
is able to accurately route bass where needed. Also key is the discrete handling and
control of both types of bass: LFE (Low Frequency Effects, or the dedicated bass
audio channel on a DVD), and Bass (all of the redirected bass that would have gone
to the satellites). This is important since it allows a level of fine-tuning for audio that
home theater enthusiasts have been clamoring for. Revolution’s bass management
makes the subwoofer channel work in a 5.1 system used for music, can extend the
life of your speakers by not routing audio to your satellites that they are not capable
of handling, and improves the sound quality of your speaker system by playing the
right audio through the right speaker.
Note: M-Audio is in the process of providing additional enhancements to the Revolution
7.1 bass management software. Depending on when you review the product, the soft-
ware you download from our website will use one of two methods. Both are accurate and
powerful, but you may want to understand in more detail how bass is handled in each:
1
T
he current bass management reduces overall volume by 6dB to ensure accurate
levels and to keep from overloading the subwoofer with the additional bass coming
from other speakers. If you notice a slight volume drop when bass management is
enabled, this is the method being used. When using this bass management, you can
slightly increase the main volume level to adjust for this.
2
Soon the software will only have a 6dB drop in the subwoofer channel when bass
management is enabled, to protect against overloading the subwoofer channel with
redirected bass. You can adjust the “Bass Boost” and LFE Boost” sliders to “0” to
Bass
Managemen
t
(PC). Simply select
the subwoofer in
the “Speake
r
Setup” pane. With
the “Bass Man-
agement” checkbox
enabled, you gain
access to a numbe
r
of powerful controls
over your system’s
bass settings.
REVOLUTION
FEATURES THE
MOST POWER-
FUL BASS
MANAGEMENT
OF ANY SOUND
CARD—IT IS
MORE POWER-
FUL THAN
MOST HIGH-
END SUR-
ROUND RE-
CEIVERS