Speaker Sound System Interface: Notes

The speakers receive information from the radio in the form of electrical current through the speaker wires. The electrical current produces the electromagnetic forces which cause the speaker cone to move, which in turn creates acoustical energy. The acoustical energy radiates from the speakers and is received by the operator as sound. If the speaker wires occasionally become shorted-to-ground or to vehicle power, the radio will sense these conditions and shut down in a non- destructive manner. After the short condition is removed, normal radio operation will return.

The speakers are angled upward and rearward for optimal sound performance. They are mounted to a flat door inner surface and provide a splash proof housing and seal through the use of a gasket on the speaker basket flange that meets the door inner sheet metal. The speakers are closed out to the trim from the front. The supporting structure is rigid as to not allow unwanted resonance or loss in bass frequencies. Grilles are used to protect the speaker covering since they allow the speaker the freedom to move and breath to make the performance more predictable. The minimum speaker impedance per channel is four ohms and the interface to the speakers is through 18 gage wire (for up-level audio sound system only) or 16 gage (for advanced audio sound subwoofer only) through the body harness. The speakers are mounted low and forward in each of the four doors.