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Polarity
Polarity Measurement - Getting Started
For acoustic polarity measurement you can use the internal
voice note microphone, or an external measurement microphone, plugged into the XLR input. The polarity result for left
and right speaker cabinets should match for a good stereo
sound image.
• Feed the speaker cabinet with the polarity test signal of the
Minirator.
• Adjust the test level (at Minirator or amplifier) until the test
signal is clearly heard.
• Enable the polarity test signal at the left speaker cabinet;
mute the right speaker cabinet.
• To activate the internal microphone, select Signal Source
with the rotary wheel
and choose Voice Note Mic with
enter .
• Measure the polarity of the left speaker cabinet and save the
screenshot in the memory menu
.
• Enable the polarity test signal at the right speaker cabinet;
mute the left speaker cabinet.
• Measure the polarity of the right speaker cabinet.
• Compare the polarity test result of both speaker cabinets.
 The polarity measurement is completed.
The sample result shows the polarity as:
• Sub-woofer: Low energy, no sub installed
• Woofer:
Positive
• Mid-range:
Negative
• Tweeter:
Positive (with small levels)
The major part of the signal energy is measured
in the mid-range frequency bands. Therefore
the overall displayed polarity is NEGATIVE.
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