DIY STK Stereo Amplifier PCB 120W - 200W STK 4201ii - STK4231ii Good Quality

DIY Stereo Power Amplifier 120W to 200W

--- Components Kit + Generic STK IC + PCB ---

The STK42XX II Series is a Hybrid Amplifier IC by Sanyo. The Series consists of 4 ICs ranging power output from 120W to 200W. All ICs in the series share the same circuit and pin out so you can just select any IC respective to your power requirement and put it to the circuit without changing any other component. STK 42XX II series can produce high power output up to 100 watts per channel. The circuit has a Built-in muting circuit to cut off various kinds of pop noise. Also It employees a Protection circuit.

This kit includes all the components for the amplifier circuit and a Instructions for assembling and testing the circuit.
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Features of the circuit

Professionally Designed PCB for the Best Quality Output and Stability.
Designed to cut off various kinds of pop noises.
Very Easy to assemble no need an expert knowledge.
Assembly and Testing Guide included (English)
Tested for Quality and Stability (Using Genuine STK IC)
Thick and wider copper paths for delivering maximum power output.
Muting circuit and Amplifier Protection on board circuit.v

Note: Actual Colors and brands of capacitors may vary from above picture.

Printed Circuit Board (PCB)

PCB Specifications

Dimensions - 150mm x 90mm
Thickness - 1.6mm
Material - Bakelite epoxy
Solder mask - none
Anti Oxidation protection - Rosin Coat (also it makes easier to solder)
Manufacturer - CAD PCB
Made in Sri Lanka

The Kit Includes

Please Let me know which STK IC you need by adding a "note to seller" or sending me a message.

If no choice has been made, STK4231 II ( 200W) will be sent by default.

Since they are large and due to packing process, 4700uF capacitors may have faint scratches and dents on their surface. It will only affect appearance.
STK IC is a Generic product.

The STK IC (Integrated Circuit)

This board is Compatible with 4 types of STK 42XX series amplifier ICs. You can choose the STK IC for desired Power and the supply Voltage in the chart below.

Example: If you want to build a 200W amplifier, you should choose STK4231II and the supply voltage should be +/-51V (or 36V-0V-36V center tapped Transformer)