AP-9821M can automatically detect audio amplifier failure and switch between 4 pcs of “main amplifier” and 4 pcs of “standby amplifier.
Descriptions:
AP-9821M can automatically detect audio amplifier failure and switch between “main amplifier” and “standby amplifier;with 4 identical independent channels, each channel can support automatic detection and switching of the main/standby amplifier.It can connect with 4 pcs of main amplifier and 4 pcs of standby amplifier.
Featrues:
1. Automatic fault detection and automatic switching;
2.Can be manually switched the working status between the main amplifier and the standby amplifier
3.Has four completely independent channels, each of which can automatically switch between the main and standby power amplifiers
4. Can connect 4 main amplifiers and 4 standby amplifiers.
Specifications:
| Model | AP-9821M |
| Channel switching capability | 150V/20A, audio signal |
| Signal input | 10KΩ 0.775V（0dB)，unbalanced |
| Switchable channel capability | 4 ch：“CH1-CH4” |
| Input detection threshold | 20mV,detection time constant100mS |
| Output detection threshold | 50mV,detection time constant 20mS |
| Inspection cycle | 500mS,6 rounds of inspection. |
| Signal input port | FR0M AUDIO SOURCE“CH1-CH4” |
| Loop signal output port | FOR LINK“CH1-CH4” |
| Connect the main amplifier input port | TO MAINIS INPUT“CH1-CH4” |
| Connect the input port of the standby power amplifier | TO MAIN AMPS OUTPUT“CH1-CH4” |
| Connect the output port of the main power amplifier | FROM SUB AMPS OUTPUT“CH1-CH4” |
| Connect the output port of the standby power amplifier | SPEAKER “CH1-CH4” |
| Protection | AC FUSE×0.5A |
| Power source | AC 220V ± 10% 50-60Hz |
| Power consumption | 10-15W |
| Machine dimension | 89×483×366 mm |
| Net weight | 6.85Kg |
| Gross weight | 8.15Kg |
