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Polarity Checker

Polarity Checker


  • XLR output on pulse generator
  • LED blinks with pulse
  • Built in microphone
  • Clear LEDs display polarity of received signal
  • Light & Compact
  • Supplied with belt pouch and useful instruction card
  • Funktion One design
  • Batteries Included


The ASPC1 Audio System Polarity Checker is an essential tool for sound system technicians to check that all the drivers in a sound system are operating with correct polarity. The product comes in two parts:


  • The pulse generator; always gives a signal in positive phase with a flashing yellow LED to show tempo of pulse and to show that the product is in operation.
  • The detector; has green and red LEDs to show whether the driver has a positive or negative polarity and a flashing yellow LED to show that the product is in operation.


It is light, compact and supplied with belt pouch.

Technical Drawings:

Polarity Checker Technical Drawing
All dimensions in mm and inches © Copyright Funktion One Research Ltd 2009 - 2024

Downloadable Files:


Product in Action: