Âm ly Boston Audio PA-3900

 Features

    Bluetooth capability
    1000Watts Maximum Power Output
    Professional Digital Echo with separate repeat and delay controls
    3 Mic inputs front and 2 Mix inputs back
    Music master bass/mid/treble controls
    Mic master bass/mid/treble controls
    Mic with individual bass/mid/treble controls
    Source level output displays
    Sub-woofer output
    4 Component inputs A/V outputs
    Advance Sound Enhancer and Music Clarity
    Remote Control
    Digital sound effect
    Inner SD Socket/USB Mp3 Play
    Amplifier Specification
    Total Power Output: 800W
    Input Impedance: 47K
    Input Sensitivity: 150mV
    Bass Control: +-15dB(100Hz)
    Mid Control: +-15dB(1KHz)
    Treble Control: +-15dB(10KHz)
    T.H.D: <0.1%
    Frequency Response: 20Hz-20KHz -1dB
    Noise Ratio: >90dB
    Power Source: 115V/60Hz-230V/50Hz
    Dimension: 430(W)x160(H)x340(D)
    Microphone Specification
    Connector: 1/4" TRS/Unbalanced
    Input Impedance: 1.5K
    Input Sensitivity: 10mV
    T.H.D: <0.5mV
    Frequency Response: 20Hz-15KHz -3dB
    Noise Ratio: >85dB
    Bass Control: +-15dB(100Hz)
    Mid Control: +-15dB(1KHz)
    Treble Control: +-15dB(10KHz)
    Digital Echo: up to 300ms