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Adjusting the output impedance
The four switches of the right-hand bank control the power amplifier
output impedance, to increase or reduce the damping of the loudspeaker
drive units. A larger room will often require more bass damping.
Impedance Setting
0Ω
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-0.5Ω
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-1Ω
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-1.5Ω
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-2Ω
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Note that decreasing the impedance increases the damping.
Protecting the speaker
Switch 6 brings a soft clipper into the bass circuit path. Use this if you
frequently play the system very loud. It allows very impressive sound
effects while protecting the drive units against extreme overdrive.
Setting Setting
No clipping
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High level
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clipping
Inverting the phase response
Switch 7 inverts the phase response. Use this if the main system power
amplifier or speakers are inverting. It may also give better results if the
5150 is at the opposite end of the room from the main speakers.
Phase response Setting
Inverted
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Normal
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setting up the AV 5150