Details：

UPC1237 power amplifier speaker, speaker, speaker protection circuit board Turn on delay about 5 seconds Audio DC output protection Each channel uses a piece of UPC1237 special protection circuit chip The resistance of the protection board uses imported resistance This version supports BTL amplifiers. The left and right channel circuits are completely independent. When using BTL amplifiers, you need to connect 2 independent power supplies. When using single-ended amplifiers, you can use 1 or 2 sets of power supplies. J2 solder joint connection. Protection board use voltage: AC12-18V (two independent power supplies are required when using BTL power amplifier) PCB size: 9.7 * 7.8cm Net weight：110G

Package included：UPC1237 power amplifier speaker protection board x1