Function Audio Bit Rate G.711ulaw（64 Kbps）/G.711alaw（64 Kbps）/MP3（128 Kbps）/AAC（128 Kbps） Protection Function short circuit protection, overcurrent protection, over temperature protection, anti-static electricity protection, surge protection, electrical shock protection
Network Network Protocol IPv4, HTTP, HTTPS , SSL/TLS , DNS, NTP, TCP, UDP, IGMP, ICMP, DHCP, ARP, SSH Interface Protocol (API) ISAPI, ISUP, RTP Audio Rated Power 500 W Frequency Response 100 V COM/70 V COM: 50~20000 Hz（±3 dB） RCA Out/3.5 mm out: 50~20000 Hz（±1 dB） THD and SNR THD: ＜0.5%@1 kHz，1/3 rated power SNR:>90 dB
Interface Alarm 1 EVAC alarm input 1 alarm input 1 alarm output, when the output device connected to the alarm output is normally closed, connect: 1A GND; when the output device connected to the alarm output is normally open, connect: 1B GND. Ethernet Interface 1 RJ45 10 M/100 M/1000 M adaptive Ethernet port Local Storage Built-in 4 GB EMMC (Audio file storage is 1 GB.) Audio In MIC 1~4: -28 dBV, 4.7 kΩ, unbalance, 6.35 mm jack RCA in 1~4: 0 dBV, 4.7 kΩ, unbalance, RCA pin jack USB 2.0 × 1 Bluetooth Note: The 6.35 mm jack cannot be wired without connecting a microphone. Audio Out Constant Voltage Output × 2: 100 V COM & 70 V COM. A single channel supports up to 250 W output. RCA out 1-2: 0 dBV, unbalance, RCA pin jack 3.5 mm out 1-2: 0 dBV, unbalance, 3.5 mm jack Note：If the constant voltage gear is set to 100 V, the constant voltage output interface(100 V) should be connected to a speaker rated at a voltage of 100 V. Connecting to a speaker rated at a voltage of 70 V could damage the device. LED Indicator Power Indicator (solid white): the device is normal working. USB flash drive indicator (solid white): the device is in USB flash drive mode. Bluetooth Indicator (solid blue): the device is in Bluetooth mode EVAC Alarm Indicator (solid red): the EVAC alarm has been triggered. MIC1 Indicator (solid white): the MIC1 audio input is connected normally. Module Indicator: FLT solid indicates overload or other system faults; CLIP solid indicates clipping or other exceptions; SIG solid indicates normal working. Volume Knob Total Volume Knob × 1， MIC Input Volume Knob × 4， RCA Input Volume Knob × 4， Output Channel Volume Knob × 2， Treble Volume Knob × 1， Bass Volume Knob × 1 USB USB 2.0. File format: FAT32 and EXFAT, maximum capacity: 256 GB. FAT32 formatted USB drive: maximum capacity of a single partition is 32 GB EXFAT formatted USB drive: Maximum capacity of a single partition is 256 GB
General Power 100 to 240 VAC Material Front panel: PC+ABS, top and bottom covers: SGCC Dimension 495.97 mm × 90.89 mm × 473.18 mm (19.53″ × 3.58″ × 18.63″) Package Dimension 595 mm × 553 mm × 175 mm (23.43″ × 21.77″ × 6.89″) ≈ 5.6 kg (12.35 lb.) With Package Weight ≈ 7.6 kg (16.76 lb.) Color Black Packing List Device × 1 Power Cord × 1 Regulatory Compliance and Safety Information × 1 Bluetooth Bluetooth 5.0，10 m Operating Temperature -10 °C to 50 °C (-14 °F to 122 °F ) Operating Humidity ＜90% (No condensation) Power Consumption Standby Consumption: 45 W Annual Average Consumption: Max. Working Consumption: 110 W (based on the average playing time) Environment This device can only be safely used in the region below 2,000 meters above the sea level
