20 Channel Stereo MP3 Sound Board with 2x15W Amplifier

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    Also Available in Miniature Size

    This item no longer available. Order the  Miniature  version instead.

    Description: FN- BC20 is a high-quality MP3 soundboard, equipped with an onboard 2x 15 W class D amplifier, the soundboard can be controlled by 20 separate buttons hooked up to the ‘one-on-one’ inputs terminals, R232 serial port, and RS485 serial port. Great audio output, industry-grade design, and strong anti-jamming capability make it possible to be used for many different applications.


    • Built-in a high-quality 24bit of the audio decoder with stereo audio output.
    • Works with most Windows, Mac, and Linux systems
    • Supports to play audio files of MP3 and WAV formats.
    • On-board a high-quality 2x15 Watt class D amplifier to directly connect with two 8 ohm speakers of 10 to 15 Watts, for the left channel and right channel.
    • Uses SD card or USB flash drive for sound file storage devices.
    • Supports a maximum 32GB SD card or 32GB USB flash drive. (1GB SD Card included)
    • Supports button control mode, RS232, and RS485 serial control mode.
    • In button control mode, playback of the ‘one-on-one' associated audio files are triggered by a negative pulse to any of the 20 input terminals.
    • In button control mode, possible playback of 255 MP3/WAV audio files per 20 ‘one-on-one’ associated folders through a negative trigger.
    • In button control mode, Four Selectable triggering modes are provided. 
    • Supports a 3.5mm stereo audio output jack to an external amplifier.
    • Separate volume control for each sound channel (only for onboard amplifier).
    • On-board relay used to control on/off to external equipment during playback.
    • Wide range for power input DC (12V - 24V).
    • Industry-grade design and strong anti-jamming capability.
    • PCB size: 110mm (L) x 65 mm (W) x 18mm (H)

    Technical Parameters:

    • Power input: DC12-24V
    • Rated output: 15W×2 (RL= 8Ω d=1%)
    • Noise Voltage: ≤50mV
    • Frequency response: 20-20KHz
    • SNR:≥ 90dB

    Connection Example:

    K1 through K20 are representing Normally Open (N.O.) manual buttons. Please refer to the connection example below.

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    Make this module motion activated: External PIR Motion Sensor