What happens if speaker impedance is too low?
Too low an impedance will result in weak output and poor tone.
If the speaker impedance is higher than that of the amplifier, its power output will again be less than it is capable of..
How can I test my speakers for damage?
Measuring them with a multimeter will often give you results that could make you think the speaker is bad. The best way to test them is to QUIETLY play a signal through them, listen to it, then see if it produces sound. If it does not, or sounds bad, the speaker needs replacing.
How do you check if my phone speakers are working?
Dial *#7353# on your phone to enter the diagnostic tool. To check your phone’s external speaker, select Speaker. You will hear loud music if your phone’s speakers are working fine.
Do speaker wires go bad?
The cable themselves will not go bad. Yes copper will oxidize and this can cause more resistance at the connection point. Clean the connection points off so you have nice clean fresh looking copper, or just strip back new exposed conductor and you will be just fine.