Sf-3, Sf-3 factory-installed sips, Sf-3 factory switch settings – QSC Audio DCA Series User Manual
Page 11: Sf-3 recommended amplifier settings, Setting up the sf-3
11
SF-3 Factory-installed SIPs
fHP= 30 Hz (27
k
Ω
SIP resistor in J2)
fLP= 250 Hz (22
k
Ω
SIP resistor in J6)
SF-3 Factory Switch Settings
Switches 1 through 6 and Switch 10 OFF: Default setting for SF-3
Switches 7 & 8 ON: Low-pass filter off (“cinema” setting)
Switch 9 OFF: LF flat
When shipped from the factory, the DIP switch settings should be set as follows:
SF-3 Recommended Amplifier Settings
Clip limiters ON (both channels)
High-pass filter OFF (both channels)
Operating mode: Stereo or Bridge mode, as the application requires
SF-3
Setting Up the SF-3
Use this table to determine the correct
resistor values for the SF-3 filter frequencies.
Identifying SIP resistor networks
f
(
.
q
e
r
f
s
s
a
p
-
w
o
L
P
L
)
e
u
l
a
v
r
o
t
s
i
s
e
r
P
I
S
z
H
0
8
K
8
6
z
H
0
5
1
K
9
3
z
H
0
5
2
K
2
2
f
(
.
q
e
r
f
s
s
a
p
-
h
g
i
H
P
H
)
e
u
l
a
v
r
o
t
s
i
s
e
r
P
I
S
z
H
0
2
K
7
4
z
H
5
2
K
3
3
z
H
0
3
K
7
2
z
H
5
3
K
0
2
z
H
0
4
K
5
1
z
H
0
5
K
0
1