Crest Audio CM SERIES Owner's Manual page 45

Example of a 70 Volt constant-voltage distribution system
20 speakers @ 10 Watts each = 200 Watts
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Ch 1
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Ch 2
70 V Line
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Low Z or
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70 V Line
Low Z or
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70 V Line
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70 V Line
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Ch 3
Ch 4
Outputs
Class 2 Wiring
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