2U standard 19-inch rack-mounted structure, black alumina brushed panel, user-friendly handle, advanced titanium polishing process, showing high-grade temperament;

It has 4 independent identical switching channels for 4 main power amplifiers and 4 standby power amplifier channels to switch;

Automatically detect the fault of the audio power amplifier and automatically switch between the main power amplifier and the standby power amplifier, and the automatic switching time is less than 0.2S;

The main power amplifier and the standby power amplifier can be manually switched;

There are 4 sets of power signal output terminals, which are connected to the speakers;

Compatible with 4 main / 4 standby power amplifier, 3 main / 3 standby power amplifier, 3 main / 3 standby power amplifier, 3 main / 3 standby power amplifier, 2 main / 2 standby power amplifier and 4 main / 1 standby amplifier, 3 main / 1 standby amplifier, 2 main / 1 standby amplifier, 1 main / 1 standby amplifier;

Compatible with one audio source and four different audio source backups;

Fault automatic detection switching, status display;

The concise LED indicator shows the working status at a glance;

It is mainly used for public address amplifier backups such as test sites and important conferences.