Overview
▪ Receive a linkage signal to automatically start emergency broadcast;
▪ Controlled self-testing;
▪ Display of audio output level;
▪ Automatic switchover of main/standby power supply, with main power supply prioritized.
▪ Controlled self-testing;
▪ Display of audio output level;
▪ Automatic switchover of main/standby power supply, with main power supply prioritized.
Technical parameter table
| Models and specifications | HY2731D2 |
| Operating voltage | AC220V |
| Constant voltage output | 120V |
| Rated output power | 150W/300W/500W |
| Frequency characteristic | 80Hz~8KHz（90V~145V） |
| Outline dimensions | 482.6×305×88mm（2U） |
| Signal to noise and distortion ratio (SNDR) | ≤5% |
| Transient starting current | ≥70dB |