1. Pulse Testing Method.

2. Polarity : 

1. Pos. polarity :Green LED indicator with beep sound.

2. Neg. polarity : Red LED indicator with no sound.

1. Sensor :ECM

2. Five selecting switches :

   WF : suitable for the woofer.

   M & T : suitable for the midrange, tweeter & headphone.

   Ext.1~Ext.3 : For connecting instruments.

3. Dim. :  28 ( L )×9 ( H )×21 ( D ) cm.

    6.    Net Weight :2.5 KGS.