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Phase-it Speaker polarity tester

  • Fast and efficient tool for verifying the polarity of loudspeakers
  • Works perfectly with individual drive units and with individual drivers in a multi-way boxed speaker system
  • Clear indication of each drivers polarity and function for fast troubleshooting
  • Auto power off for long lasting battery time

The measuring technique behind Phase-It

The Phase-it generates a harmless electrical pulse into the connected speaker or speaker system. A build-in microphone at the top of the Phase-it receives the pulse reproduced by the speaker and compares it with the one of the generator.

The actual phase/polarity of each driver tested will be indicated by the bi-colored LED of the Phase-it. Green indicates that the measured driver is in phase (correct polarity) and red indicates a 180 degree shifted phase (incorrect polarity).

While measuring a "pop - pop" sound is audible and the diaphragms of the drive units should move a little, point the microphone end of the Phase-it close to the speaker and move it from driver to driver.

 

HOW TO USE   Phase -it                 APPLICATIONS   by Russell Storey

Phase testing  Dome Tweeter

Phase testing  Woofer 

 

Phase testing  Speaker  box Woofer and  dome Tweeter  ( including the crossover ) 

 

Phase testing  Speaker  box Woofer and  Ribbon Tweeter  ( including the crossover )   Artisan R270 Ribbon speaker

Phase testing   a  Fountek JP30  Ribbon Tweeter  ( including the crossover )  CAPACITOR OR  CROSSOVER

WARNING !!!!  CONNECTING  Phase-it Speaker polarity tester direct across a (pure)  ribbon tweeter terminals with damage the diaphgram

DO NOT ATTEMPT TO  TEST A RIBBON TWEETER WITH OUT  A  CROSSOVER UNIT .

I recommend a using a crossover with a  12db to 18db  high pass   filter    OR     1uf DC BLOCKING CAPACITOR    INSERTED BETWEEN the Phase-it Speaker polarity tester  and the Ribbon tweeter   + and -  terminals


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