1. The power amplifier combination can be 1 main + 1 backup, 2 main + 1 backup, 3 main + 1 backup, 4 main + 1 backup, 5 main + 1 backup,
up to 5 main + 1 backup; Flexible collocation;
2. When each IP main power amplifier is playing different audio sources, the backup power amplifier can replace any damaged main power amplifier
at any time, whichever fails first. When the bad power amplifier returns to work, the spare power amplifier can replace another damaged power
amplifier.
