Orion 8002 Owner's Manual page 13

Tri-Mode Three Channel Configuration
Lowest recommended impedance is 2W stereo and 4W bridged mono.
Stereo operation must be used.
Outputs must be configured for full range operation.
Output is configured stereo and summed bridged.
Passive crossover frequencies must not overlap.
WARNING! Failure to do so may result in damage to the amplifier.
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