Galaxy Audio CRICKET POLARITY TEST SET - Manual (Page 10)

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3. Set receive unit to "MIC", and the "CON/POL"
switch to "POL".
4. Hold the receive unit directly in front of the
speaker, 1/2" to 2" away.
5. A speaker that is in proper polarity (positive
signal moves cone away from magnet) will light
6. An out of polarity speaker will light the red
LED.
F. Testing the polarity of flown speakers, or
distributed system speakers in permanent
installations.
1. Test amplifier as in "C", above.
2. Turn down the system's amplifier and, using a
known good cable, connect the send unit's 1/4"
balanced output to the system amplifier's `
input. If the amplifier has a balanced input,
an intact, properly polarized three conductor
cable should be used. If the amplifier has an
unbalanced input, use a good two conductor
cable terminated with only #1 or sleeve and #2
or tip properly connected to three conductor
connectors.
3. Set the send unit to "Lo" and slowly turn up
the amplifier to a comfortable level. If enough
gain is not available, turn the amp down, set
the send unit to "Hi" and slowly turn up the
amp. If suitable gain is still not available,
turn down the amplifier and connect the send
unit's 1/4" unbalanced "EXT SPKR" output to the
amplifier's input. Turn the amplifier up to a
comfortable level.
4. Set the receive unit to "MIC" position and the
"CON/POL" switch to "POL" position. Point it,
on axis, towards the speaker you are testing,