Assembled Stereo UPC1237 Speaker Protection Board For Amplifier DIY



Works voltage:  AC9V-18V   about 0.5A will be enough

PCB Size: 125MM * 42.2MM

Output terminal hole spacing：30mm   (Center to Center Spacing）

High sensitivity, low contact resistance, can guarantee the use of two-channel power amplifiers up to 300W X2 (2-8) ohms

Features:
1 UPC1237 as the core , with power-on delay, DC protection, power-off anti-shock.

2. Use fully sealed high-current relay as the core device, not afraid of contact ignition and oxidation. Double-parallel connection, independent channels, current multiplication, and internal resistance are reduced by half at the same time, which is beneficial to lossless transmission of sound

3.Using 7812 as voltage regulator, the power supply range is wide, up to any range from AC12V to AC18V

This board are desighed for fixed at the amplifier back panel. as the following photo show:

Note: this list just for the assembeld Speaker protection board. not include the Speaker terminals!!!