20 Channel MP3 Sound Board with 2x15W Amplifier

Description

Brief Introduction
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.
Features
Built-in a high-quality 24bit of an audio decoder with a stereo audio output.
Supports to play audio files of MP3 and WAV formats.
Onboard a high-quality 2x15 Watt class D amplifier to directly connect with two 8 ohm speakers of 15Watts or more, for the left channel and right channel.
Uses SD card or USB flash drive for sound file storage devices.
Supports 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 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 audio output to an external amplifier through the RCA audio jacks.
Separate volume control for each sound channel (only for the onboard amplifier).
The onboard 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: 135mm x 75 mm (5.315 Inches x 2.953 inches).
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.