QSC Audio DCA Series - Manual (Page 11)

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