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Sj-y150 teaching active speaker

Input level microphone: 20mV line: 300mV Frequency response line: 20HZ-20KHz microphone: 60HZ-18KHz microphone pitch: 3KHz±12dB Bass: 100Hz±12dB Microphone distortion nonlinear ≤0.2% consulting

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Input level microphone: 20mV line: 300mV Frequency response line: 20HZ-20KHz microphone: 60HZ-18KHz microphone pitch: 3KHz±12dB Bass: 100Hz±12dB Microphone distortion nonlinear ≤0.2%
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