FreeSpace
3 Flush System
®
step 4 using your sketch of the room, create a layout with the Loudspeaker spacing that meets your
Coverage Requirement.
A. Calculate the
Loudspeaker
Throw.
Loudspeaker Throw Distance
(Loudspeaker Mounting Height - Listener Height)
Floor
C. Place the first
loudspeaker
at ½ the
Loudspeaker
½
Loudspeaker
Spacing
Spacing
distance from
any corner of
the room.
step 5 using your sketch of the room, create a Bass Loudspeaker Layout with the correct number of
bass modules to meet your Coverage Requirement.
A. Determine the quantity of bass
modules required for your system layout.
Coverage
Premium
Standard
step 6 Calculate the required amplifier size. use the Tap Chart at below to determine which loudspeaker
tap is required for this design.
FreeSpace 3 Flush System Tap Chart
Mount
m
2.4
3.0
3.6
Height
ft
8
10
12
25
87
86
86
T
50
90
89
89
A
P
100
93
92
92
200
96
95
95
B. Calculate the Loudspeaker Spacing distance by multiplying
Loudspeaker
Loudspeaker Mounting Height
Loudspeaker Throw Distance x Coverage Multiplier = Loudspeaker Spacing
Listener Height
Seated - 3ft | 1m
Standing - 5ft | 1.5m
D. Remaining loud-
½
Loudspeaker
Spacing
B. Use the spacing guidelines below, determine the minimum
Bass Required
Total Satellites / 2
Total Satellites / 4
A. Locate the loudspeaker mounting height for this design.
B. Draw a line down to the desired maximum SPL.
4.2
4.8
C. Draw horizontally across the chart to read the required loudspeaker tap.
14
16
D. Calculate the required amplifier power:
85
84
dB
SPL
88
87
91
90
E. Calculate the required amplifier size:
94
93
the Loudspeaker Throw Distance by the Coverage Multiplier.
Coverage
Multiplier
Premium
Standard
x
(Coverage Multiplier)
(Loudspeaker Throw
Distance)
speakers are
arranged on a
square grid
pattern using
Loudspeaker
the Loudspeaker
Spacing
distance.
spacing between two or more FreeSpace 3 bass modules.
Bass Module
FreeSpace 3 Bass Module Mounting Height
Spacing
8ft | 2.5m
Min Spacing (ft)
20
Min Spacing (m)
6
x
Number of Loudspeakers
Required Loudspeaker Tap
=
x
1.25
Power Required
Headroom
2.0
2.5
=
(Loudspeaker Spacing)
Loudspeaker
Spacing
Spacing
10ft | 3m
12ft | 3.5m
25
30
7.5
9
=
Power Required
Amplifier Size
16ft | 4.8m
35
11
3
4
OF
p r o . B o s e . c o m
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