Rated output power: 250W Input sensitivity: MIC1: 5mV (unbalanced 6.35mm interface input); MIC2-MIC4: ±5mV (balanced XLR input); AUX IN: 300mV ±30mV (unbalanced RCA input); EMC IN: 375mV ±30mv (unbalanced terminal) Freq. Response: 60Hz - 16kHz ±3dB THD: =1% @ 1kHz Screen: Multi-functional segmented LCD display SNR: =75dB Total volume: Adjust volume from 0 to 32 with number displayed on screen Audio adjustment range: Bass: 100Hz ±10dB; Treble: 10kHz ±10dB with number displayed on screen Priority: 3-level custom priority, EMC > MIC1 > Remoter Paging RJ-45 Port: RS-485 Communication Protocol Phantom Power: +48V ±2V AUX IN: 2 channel AUX IN EMC IN: 1 channel EMC IN LINE OUT: 1 channel LINE OUT: 1V @ 1kHz USB Connection: Type-B, Female USB Drive Format: FAT32 format – max 32GByte Player File Formats: MP3 e streaming BT audio wireless BT Receiving Distance: 10m BT Standard: BT2.1+EDR FM Tuner: 87.5MHz-108.0MHz Power Requirement: AC 220-240V/50-60Hz Fuse: 4AL250V