5.1 Amplifier Speaker Protection Circuit

5.1 Speaker protection circuit for amplifier. This post shows you how to create. This Speaker protection circuit makes soft start on the amplifier, soft off and protects the speaker from DC Voltage when the amplifier is faulty.

Speaker Protection Components ;

  • 12v Single Channel Relay – 1no
  • 12v Dual Channel Relay – 3no
  • 1n4007 Diode – 6no
  • BC547 Transistor – 2no
  • BC557 Transistor – 1no
  • 220uf Capacitor – 1no
  • 22uf Capacitor
  • 1000uf Capacitor To Use 47uf Capacitor – 1no
  • 4148 diode – 6no
  • 6v2 Zener Diode – 1no
  • 390k resistor – 1no
  • 22k resistor – 1no
  • 47k Resistor – 1no
  • 68k Resistor – 6no
  • LED – 1Red, 1Green
  • 3Pin RMC Connector – 1no

Tools Needed ;

  • PCB Holding Stand
  • Soldoring iron
  • Lead Past
  • cutter

PCB Layout ;

Download Gerber :

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