SF-3 Factory-installed SIPs

SF-3	Setting Up the SF-3

fHP= 30 Hz (27 kΩ SIP resistor in J2)

fLP= 250 Hz (22 kΩ SIP resistor in J6)

SF-3 Factory Switch Settings

When shipped from the factory, the DIP switch settings should be set as follows:

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

Clip limiters ON (both channels)

High-pass filter OFF (both channels)

Operating mode: Stereo or Bridge mode, as the application requires

Use this table to determine the correct		Identifying SIP resistor networks
resistor values for the SF-3 filter frequencies.		Identifying SIP resistor networks
Low-pass freq. (fLP)	SIP resistor value
80 Hz	68K
150 Hz	39K
250 Hz	22K
High-pass freq. (fHP)	SIP resistor value
20 Hz	47K
25 Hz	33K
30 Hz	27K
35 Hz	20K
40 Hz	15K
50 Hz	10K