HiFi Grade High Power Thick Film STK412-530 Power Amplifier Finished Board

We stumbled upon a stock of STK412-530. After getting the test, it was found that this module has great potential, and the actual power is also above STK412-430.

Suffering from the lack of actual official information, we tentatively set its power to 120WX2 @ 6Ω. The working voltage is recommended to be plus or minus 45V (AC input is around 30V). The maximum working voltage should not exceed plus or minus 52V. (The schematic diagram actually needs high and low voltage power supply, there is a schematic diagram in the link for reference)

This product is a beta version, which is installed and tested before delivery. The finished plate and the radiator as shown in the picture should not be enough when actually using medium and high power. You can add a radiator according to your actual use. 

The main filter capacitor of this product is a second-hand disassembled ruby.  

Power supply voltage: AC double 24-35V, transformer power recommended 300W or more. The default filter capacitance is 50V.

Output power :200WX2

Resistance :4-82<

Dimensions: Width 125 high 49 deep 68mm

Weight: 0.45KG, calculated according to 1KG after packaging!