Bose FREESPACE 4400 - Manual (Page 46)

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6.0 FreeSpace ® 4400 System Setup
6.3.8 Dynamic EQ
The Dynamic EQ control panel provides an on/off control to
enable/disable Dynamic Equalization in the current zone.
Dynamic EQ should only be used in either of the following
conditions:
• The system contains extended bass or a FreeSpace ® 3 loud-
speaker system.
• A user interface is being used to control the volume and no
autotransformers are being used on the loudspeaker line.
When autotransformers are used, the system cannot accu-
rately monitor the output level of the system, and as a result,
cannot provide the appropriate response for the current listen-
ing level.
Factory default settings
Dynamic EQ compensates for a perceived loss of bass response
at low listening levels. Based on the current output level of the
FreeSpace 4400 system, additional bass and high frequency will
be added.
For Dynamic EQ to operate correctly, make sure the hardware
is connected properly:
• An AVM user interface must be connected to the WALL PLATE
input connector.
• The loudspeaker(s) must be directly wired to the ZONE
OUTPUT connector.
• DO NOT USE AUTOTRANSFORMERS: DO NOT use an
autotransformer on the loudspeaker line to adjust the loud-
speaker volume. Dynamic EQ will not operate properly with this
added component.
6.3.9 Auto Volume
The Auto Volume function controls the volume level in a zone in
relation to its environmental noise. Using the Auto Volume control
pane, you can configure and calibrate this function for each zone.
Factory default settings
Dynamic EQ is set to Off.
ZONE OUTPUT 1
WALL PLATE
CONNECTION 1
Loudspeaker
AVM
user interface
ZONE 1
4400 System
Auto Volume Auto Volume Tracking
Off Equal to background noise
ZONE OUTPUT 1
WALL PLATE
CONNECTION 1
Loudspeaker
AVM
user interface
Volume
Adjustment
ZONE 1
4400 System
Auto Volume
On/Off states
Auto Volume
Tracking settings
Auto Volume
calibration button
Auto Volume calibration
reset button