Features:

The speaker protection board is designed and manufactured with UPC1237 special chip

With power-on delay and AC protection,instant shutdown function

All-round protection of your expensive speakers

The board uses 1.6MM thick high FR-4 board manufacturing spray tin foil

The 10A relay is loose music quality

Resistor ring is gold film resistor copper feet

And with a red power indicator

The relay is energized for about 3 seconds,indicating a green light and working indicator.

The protection board adopts single power supply voltage AC 10V-18V,AC 12-24V

It can take a group of electricity to the amplifier board

Try to use independent winding or separate power supply with conditions.

Amplifiers midpoint potential protection

The AC midpoint is >0.7V from the control point

All finished boards are well debugged and power tested

Package includes:

1PCS*protection circuit board

Note:

Please allow 1-3mm error

Due to manual measurement

Please make sure you don't mind before bidding

Due to the difference between different monitors

The picture may not reflect the actual color of the item

Thank you for your support