20KHz. Operating Temperature: -10 ～ 55 ℃. Measurements: 126x66x27mm. Network Digital Amplifier XC-9508P Power Supply: AC100V ～ 240V, 50/60Hz. Power: 130W, 260W, 360W, 500W. Communication Protocol: TCP/IP, UDP, SIP. Signal-to-Noise Proportion: IP Speaker > 80dB. Frequency Response: 60Hz

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