Bose FREESPACE 4400 User Manual

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2.0 Designing with the FreeSpace
®
 4400 System
2.2.3 Step 3 – Determine volume 
control requirements
Decide which areas will have volume controls. Create a control 
map, such as the following, showing the types of controls that 
will be used, and the areas in which they will be installed.
AVM (Auto Volume/Mute) user interfaces are available for use 
with the FreeSpace
®
 4400 system. They offers control over 
source selection and volume. The interface can be configured as 
an AVM (Mute) interface or as an AVM (Auto Volume) interface. If 
you have identified an area that uses auto volume, you must con-
figure the interface as an AVM (Auto Volume) interface to control 
this zone.
It is also possible to use a 70/100V in-line volume control 
between the amplifier output and the loudspeaker. If you plan to 
use a 70/100V in-line volume control, be aware that they cannot 
be used in zones where either Auto Volume or Dynamic EQ is 
used. Auto Volume and Dynamic EQ monitor the amplifier output 
and make adjustments accordingly. Using an in-line volume con-
trol would cause these functions to operate improperly.
When determining the placement or physical location of the con-
trols, first think about how the control is used. If the control is 
very rarely used or it requires a secure location, it should be 
placed with the equipment. If the control is for an area that 
requires frequent adjustments, then it is best to place the control 
in the area being controlled. 
2.2.4 Step 4 – Determine the loud-
speaker requirements
Determine the loudspeaker coverage required for the design. 
Consider the following points as you do this:
• Each Auto Volume function requires a separate zone. Each 
Auto Volume zone requires the dedicated use of one 
FreeSpace 4400 output channel.
• Each type of specifically equalized Bose loudspeaker requires 
the dedicated use of one FreeSpace 4400 output channel. If 
you are designing a system that uses specific Bose loud-
speaker equalization, such as the 102
®
F loudspeaker, Model 
32, Model 32SE, or Model 8, you must dedicate one 
FreeSpace 4400 output channel for each loudspeaker type.
Create a loudspeaker map, such as the following, and match the 
loudspeaker models to areas (Loudspeaker Qty x Tap = Zone 
Power required):
AVM (Auto 
Volume) 
Interface 
1
AVM (Auto 
Volume) 
Interface 
2
AVM 
(Mute) 
Interface
1
AVM 
(Mute) 
Interface
2
Area 1
Area 2
Area 3
Area 4
Area 5
Model 
32SE
FreeSpace 
3-I
Loud-
speaker
Qty
Tap
Area 
Power
Area 1
2
50
100
Area 2
5
8
40
Area 3
1
50
50
Area 4
3
4
12
Area 5
6
8
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