Loudspeaker overcurrent protection

A transducer that includes a frame, a cone coupled with the frame, a voice coil former coupled with the cone, a voice coil coupled with the voice coil former and a loudspeaker terminal coupled with the frame, the loudspeaker terminal operable to receive signals from an audio amplifier, the transducer further comprising:

• a voice coil wire that forms the voice coil;
• and
• a litz wire electrically connected between the voice coil wire and the loudspeaker terminal, at least a portion of the litz wire operable to melt in the presence of a sustained direct current applied to the loudspeaker terminal that is greater than an established maximum, wherein the established maximum is less than a predetermined magnitude of sustained direct current that will cause a short circuit to develop in the voice coil.

A transducer that includes a loudspeaker terminal for receiving program material from an audio amplifier and a voice coil driven by the program material, the transducer comprising:

• a litz wire operable to conduct program material in the form of an alternating current signal from the loudspeaker terminal to the voice coil,
• where only the litz wire is operable as a fuse to stop conducting in response to the presence on the litz wire of direct current greater than an established maximum, wherein the established maximum is previously determined and is less than a magnitude of direct current that causes adverse consequences to be experienced by one of the voice coil and the audio amplifier.