Dolby Laboratories CP500-300 Specifications Page 134

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B-5
B.4.2 Crossover Frequency
The values given in the table are for a 500 Hz
crossover frequency. The frequency can be
set by scaling ALL resistors in the same
manner. Larger resistors give lower
frequencies.
Example: Suppose you wish to create a
630 Hz crossover frequency. Multiply each
resistor value above by 500/630. The table
shows the resulting values rounded to the
nearest standard 1% resistor value.
B.5 Headers Available
Factory-made headers currently shipped with the product are:
Channel Function Dolby Part no.
LCR and Bypass 500 Hz Crossover 74114
LCR and Bypass 800 Hz Crossover 74117
LCR 1.9 ms LF Delay 74115
LCR 0.8 ms LF Delay 74116
The Ls and Rs crossover frequency setting header is available only as the 50/100
Hz reversible header shipped with the product.
500 Hz header
Pins Resistance
1-16 10.0K
2-15 10.0K
3-14 6.98K
4-13 13.0K
5-12 8.45K
6-11 8.45K
7-10 16.9K
8-9 none
630 Hz header
Pins Resistance
1-16 7.87K
2-15 7.87K
3-14 5.49K
4-13 10.2K
5-12 6.65K
6-11 6.65K
7-10 13.3K
8-9 none
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