Tip & How-To about Audio Players & Recorders
When in doubt about your audio speaker wiring, or if you think that one of your speakers might have stopped working, here is a cheap, accurate way of checking the speaker or the speaker wire. Take a regular 9 volt battery (like those used in smoke alarms) and touch the terminals to both wires of your speakers (disconnect from amp first), if you hear a pop in the speaker, the wires are good, To test individual speakers, touch the battery terminals to the speaker terninals and listen for a pop sound. If you can see the cone of the speaker you can also determine which pole is + and which is - by watching which way the cone moves, If the cone moves out you have the positive + battery terminal on the plus speaker pole. and vice versa. This battery test is safe for you speakers. If you do this kind of audio work, always carry a fresh 9 volt battery in your tool box.
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