| Setting up the |
XC-3 Factory Switch Settings
When shipped from the factory, the DIP switch settings should be set as follows:
Switches 7 & 8 ON: | sets |
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. |
XC-3 Recommended Amplifier Settings
Clip limiters: ON (both channels)
Low frequency filters: ON (both channels), select either 30 or 50 Hz
Operating mode: stereo
Use these tables to determine the |
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| Identifying SIP resistor networks | ||
correct resistor values for the crossover | Crossover freq. (fXO) | SIP resistor value | |||
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frequencies and delays you need. The | 80 Hz | 68K |
| ||
shaded values are for the |
| ||||
frequency (fHP) of the | 150 Hz | 39K |
| ||
Delay (ms) | SIP resistor value | 200 Hz | 27K |
| |
1.8 | 27K | 250 Hz | 22K |
| |
1.4 | 22K | 300 Hz | 20K |
| |
1.3 | 20K | 350 Hz | 18K |
| |
1.2 | 18K | 400 Hz | 15K |
| |
1 | 15K | 500 Hz | 12K |
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0.8 | 12K | 600 Hz | 10K |
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0.7 | 10K | 650 Hz | 8.2K |
| |
0.6 | 8.2K | 800 Hz | 6.8K |
| |
0.5 | 6.8K | 1 kHz | 5.6K |
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0.4 | 5.6K | 1.2 kHz | 4.7K |
| |
0.3 | 4.7K | 1.5 kHz | 3.9K |
| |
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).
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