Xc-3, Setting up the xc-3 – QSC Audio DCA Series User Manual
Page 7
7
Use these tables to determine the
correct resistor values for the crossover
frequencies and delays you need. The
shaded values are for the high-pass
frequency (f
HP
) of the XC-3.
XC-3
Setting
up the XC-3
Effects of high frequency boost on
frequency response (crossover
frequency = 500 Hz). A boost of +10 dB
is most common for compensating for
screen loss (attenuation of high
frequencies as sound passes through
screen perforations).
XC-3 Factory Switch Settings
XC-3 Recommended Amplifier Settings
Switches 7 & 8 ON:
sets XC-3 to Biamp mode
Switch 1 ON:
activates LF delay
Switches 3 through 6 OFF:
HF boost disabled
Switches 2, 9, and 10 ON:
Factory default settings for proper operation.
Clip limiters: ON (both channels)
Low frequency filters: ON (both channels), select either 30
or 50 Hz roll-off
, depending on speaker specifications
(both channels)
Operating mode: stereo
Identifying SIP resistor networks
When shipped from the factory, the DIP switch settings should be set as follows:
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