JPS58169793

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DESCRIPTION JPS58169793
[0001]
Brief description of the drawings
[0002]
FIGS. 1 and 2 are circuit diagrams for explaining the switching from the conventional twospeaker system to the four-speaker system, and FIG. Dee. 3 ... BTL amplifier, 3a, 3b ... amplifier,
4b ... output terminal, 7 ... additional speaker, 8a ... selector switch, 3b, $ c ... pair of terminals.
10-05-2019
1