Fuhjythy Dual Channel Speaker Protection Circuit Board High-Power Audio Amplifier Speaker Protector

Mute delay boot,shutdown speed off. All finished boards are good debugging,and power test. Amplifier midpoint potential protection,the midpoint of DC from the control point of more than 0.7V. The speaker protection board has a power-on delay and DC protection,instant shutdown feature,all-round protection of your expensive speaker! Note: 2 sets of BTL circuit strings are required. The speaker protection needs winding power supply, and cannot share power with other circuits.