Orion 250R & 275R Owner's Manual page 31

• Lowest Recommended Impedance is 0.5 stereo and 1 bridged mono.
• RCA inputs are connected to both left and right channels
• Left Phase switch set to 0°
• Right Phase switch is set to 180°, Speaker polarity on the right channel must be inverted to maintain proper speaker polarity.
• Gain controls must be set identically for both left and right channels.
• Output must be configured for full range operation.
• Passive crossover frequencies must not overlap.
WARNING: Failure to do so may result in damage to the amplifier.
• Output is configured summed bridged, which is ideal for single subwoofer applications..
TUNING NOTE: The phase switches can be individually switched for improved sound quality. In the Tri-mode configuration the
left and the right phase must be set opposite from each other in order to operate correctly. The high-pass cross
over can be used as a subsonic filter with INTELLi Q. Configure the high-pass crossover for "LOW" frequency
range operation and set according to instructions explained in the High-pass Crossover Section in this manual.
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