Features:
* Supports speaker loop grounding, open circuit and short circuit detection, and automatic amplifier protection in case of short circuit fault.
* Supports 3/4-wire speaker loop wiring, fire alarm broadcasting, audio control and forced cutting, and maximum volume output.
* It has 8 programmable trigger input online interfaces, which can trigger the pre-programmed voice messages to the specified partitions.
* It has 8 programmable trigger output online interfaces, which can output short-circuit voltage-free relay control signals to third-party equipment to achieve online automatic control.
* Supports the amplifier to enter power saving mode when there is no signal input to save energy.
* Supports connection with linkage fire alarm controller to realize fire alarm linkage control.
* Provides a DC 24V backup power input interface (24V DC power provided by an external DC power charger) to realize main and backup power supply.
Specifications:
| AC power input voltage | ~ 220V ± 15 % , 50-60Hz |
| AC power input current | ＜ 3.5A |
| DC power input voltage | DC24V , 19-30V adaptive |
| DC power input current | ＜ 30A |
| Fuse specifications | 250V/ 6.3A , slow type |
| Maximum power consumption of the device | 6 5 0W |
| Number of output partitions | 8 |
| Output voltage | 100V |
| Output type | Transformer output |
| Output power | 500W ( maximum output of a single zone ) |
| Distortion | ＜1%（rated output power ） ， 1 kHz |
| Frequency response | 300Hz – 16k Hz |
| Signal-to-Noise ratio | ＞ 68dB |
| Maximum output power | 500W |
| Override type | 3-wire and 4-wire |
| 4-wire forced output voltage | 24V |
| Amplifier status detection time | ＜0.5S |
| Partition detection status | Short circuit, open circuit, short circuit to ground |
| Partition detection time | ＜0.5S |
| Line input number | 4 channels (2 channels of Kalon interface, 2 channels of RCA interface) |
| Line input sensitivity | ± 385mV (balanced), 775mV (unbalanced), 10mV (unbalanced) |
| Line input impedance | 20KΩ (balanced), 10KΩ (unbalanced) |
| 8-channel relay programmable output | Short circuit, no voltage |
| 8-channel programmable trigger inputs | Short-circuit input, short-circuit input with detection, voltage input |
| Short circuit mode | 3.3V voltage, short contact trigger, no linkage line monitoring function |
| Short-circuit mode with detection | 3.3V voltage, short contact trigger, support linkage line fault alarm |
| Cooling method | Air-cooled |
| Protection method | Delay/overtemperature/short circuit/overload |
| Dimensions ( L×D×H ) | 484×4 65.1 ×100.7 mm |
| Weight | About 1-2kg |
