NTi Audio Minilyzer ML1 - Manual (Page 30)

30
Measurement Functions
polarity
The polarity test function detects the correct cable and speaker polarity
in combination with the Minirator. The Minilyzer provides the following
test configurations:
a. Speaker polarity test
Fig 3.12 Speaker Polarity Panel
Fig 3.13 Woofer Polarity Panel
Feed the speaker system
with the polarity-test signal of
the Minirator and adjust the
level (at Minirator or amplifier)
that the test signal is good
to hear.
Minilyzer settings:
• IN:MIC (INT), using the
internal mic of the Minilyzer
ML1
• IN:XLR/RCA, using an
external mic, such as the
MiniSPL
Choose the polarity test
frequency range:
• FULL/MID, for tests with
wide band speakers
• WOOFER, for tests with
woofers
Note: Please note the polarity testing is a simplified
measurement of a very complex signal phasing.
Drivers, speakers and cross-overs cause severe
phase shifts of the audio signal.
The polarity of various speakers within the same
cabinet can be different. This is not a problem nor
caused by bad speaker design.
Polarity testing is useful for checking the correct wiring
of similar speaker systems.