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Teaching multimedia frequency shift amplifier (2*100W/8Ω)
Teaching multimedia frequency shift amplifier (2*100W/8Ω)
Teaching multimedia frequency shift amplifier (2*100W/8Ω)
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  • Teaching multimedia frequency shift amplifier (2*100W/8Ω)
  • Teaching multimedia frequency shift amplifier (2*100W/8Ω)
  • Teaching multimedia frequency shift amplifier (2*100W/8Ω)

Teaching multimedia frequency shift amplifier (2*100W/8Ω)

Product model: BL-960BK


  • Product Features
  • Product Parameters
  • 1. One key to set the fully automatic working mode.
    2. Support digital feedback suppression circuit (AFC): effectively eliminate howling;
    3. Support digital echo cancellation circuit (AEC): effectively eliminate echo;
    4. Support dynamic noise filter (ANC): it can filter out the background noise of the field environment without affecting the high-quality transmission of the voice signal, improve the signal-to-noise ratio and improve the sound quality;
    5. Support automatic gain control (AGC): system intelligent level control technology, you can get a clear, continuous, no significant fluctuations in the signal level of the voice signal;
    6. Support digital high and low pass adjustment control: can limit the voice frequency response range;
    7. Support digital pressure limiter: can improve the distance of pickup;
    8. Support 8-segment digital graphic equalizer: more precise frequency control;
    9. Human voice incentive function, can enhance the clarity of speech;
    10.6 microphones can be connected to provide 48V phantom power supply: 1-4 channels are the function of selecting one of four channels, and 5-6 channels are straight channels;
    11. Four line inputs and two recording level outputs provide fixed resistance 2 × 100W/8Ω power output;
    12. Keyboard locking function: when the administrator has finished debugging the equipment, the panel buttons will be locked to prevent non-administrators from operating;
    13. Provide RS232 serial port and upper computer software, which can be controlled by computer and can be connected to central control;

  • 1. Working power supply 220V ± 10% (AC,50/60Hz)
    2. Microphone input level-40dB
    3. Microphone input impedance 2KΩ
    4. Low-pass frequency characteristics 5KHZ-20KHZ
    5. High-pass frequency characteristics 50-250HZ
    6. Microphone frequency characteristics 50Hz ~ 18KHz (-3dB, when the band pass is closed)
    7. Line frequency characteristic 20Hz ~ 20KHz(± 2dB)
    8. Distortion ≤ 0.1 DSP processor ≤ 0.065 (1KHz/0dB)
    9, signal-to-noise ratio ≥ 80dB DSP processor ≥ 95dB(A weight)
    10. Microphone gain boost ≥ 8 dB max 20 dB
    11. Interface microphone polarization power supply 48V (DC DC)
    12, line input level 0dB two-way
    13, line output level 0dB two-way
    14. Power output rated power 100W * 2/8Ω
    15, power output rated power 180W * 4/4 Ω,
    16. Automatic mute setting time 0-30 minutes
    17. Volume (width × height × depth) 480mm × 390mm × 88mm

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