| 摘要 |
PROBLEM TO BE SOLVED: To provide a backup device for audio system advantageous in the manner of cost in comparison with conventional one. SOLUTION: In an audio system 1 combining plural pieces of audio equipment 2, 3, 4 and 5 respectively having memories, any one piece of specified audio equipment 2 is provided with a backup means 2b for its memory at least so as to transfer the backup data of respective pieces of audio equipment 3, 4 and 5 except for this specified audio equipment to the memory of this specified audio equipment 2. |
