Parameters:

• Working Voltage range: DC10~25V
• Output load: 4~8 ohms(recommend)
• Frequency response range:14~100KHz
• SNR(Signal to Noise Ratio): no low 100DB
• Switch frequency: 1.2MHz
• Channel quantity: 1 x DBB, 1 x left channel, 1 x right channel

Note:

• The power supply interface has reverse protective unit. If you has a reverse connection, it wouldn’t be burned, but doesn’t work.
• We recommend the power supply with adequate power, otherwise, it cannot play the power of amplifier and the speakers. Please use this amplifier board with the suitable speakers and boxes to make sure the good sound.
• Each speakers strictly follow the wiring diagram to connect, if the speakers connect wrong, it will severely degrade sound efficiency.
• This amplifier has passed the strict test, so the fever is normal during working.
• The current range of 5V external power supply interface is within 100mA, please do not exceed it.
•  The judgment method of digital noise floor: short-circuit the input, test and listen the output. If it has noise after connecting PC or smart phone, then the problem caused by the devices, and it just shows the amplifier is sensitive.

Package Includes:

• 1 x Subwoofer Amplifier Board