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Discussion in 'Miscellaneous [BG]' started by MCBTunes, Jan 17, 2006.
What arent speaker and Guitar cables interchangeable? they have the same ends
It has to do with capacitance and power handling capabilities. With guitar cables, you make your head work harder to transfer power to your speakers (IIRC).
Even if the ends are the same, they serve a different function.
A speaker cable transfers a high voltage, high current signal, so it uses a non-shielded heavier gauge cable (10-16 ga.).
An instrument cable transfers a low voltage, low current signal, which is susceptible to interference, so it uses a shielded, lighter gauge cable (18-22 ga.).
To deliver 400 watts into a 4 ohm cabinet, a speaker cable would have to carry 40 volts at 10 amps of current. Trying to put that kind of current through a 22 ga. instrument cable is a bad idea.
Further, the problem of using a speaker cable for an instrument is that it will pick up interference and hum.
One is insulated and one is non-insulated.
I hope that they're both insulated. If not, there's going to be some shorting (and maybe sparking and burning if it is the speaker cable).
You may mean shielded.
+1 Thats what I meant.