Banana plug diameter for speaker output

• All Fosi amplifiers use standard-sized speaker terminals, they are standard 4mm pins.
  
  
• Easy to wire up and solidly connect to amplifier and passive speaker
  
  
• If they do not fit, use a little force to tighten the plugs
  
  
• Please refer to the video through the link. https://youtu.be/6pYhoqDlvNw

If you have any questions or concerns, please don't hesitate to contact support@fosiaudio.com.