How To Test A Speaker Wire. In some high-end speaker wires the insulation is transparent or see-through enough to see the bare wiresWhen this is the case usually the silver wire will be the positive polarity and the copper wire will be negative. This is where your tape comes in.
It works by connecting the audio output of your smartphone to the input of your system. Youll notice the movement of the cone in the speaker. Now connect the negative wire and put everything back in place.
With your battery in hand and access to an end of a speaker wire lightly hold up the end of the wire against either side of the battery labeled as either positive or negative with a or - sign.
Take your speaker or amp and unscrew it with a screwdriver. If this connection has generated a pulse then the speakers are working fine. A crimp tool can be found for under 10 if you shop carefully. Keep reading to find out.
