2x25W Stereo Power Amplifier with STK4141II

Here the stereo power amplifier based on single IC STK4141II. This stereo amplifier circuit will deliver 25W audio power on each output channel.

2x25W Stereo Power Amplifier with STK4141II circuit diagram

Recommended voltage is 27.5V for 8 ohms speaker and 24.5V for 4 ohms speaker while the maximum voltage to supply this circuit should be about 41 VDC. This circuit operated with dual polarity (symmectrical) power supply, so center tap type of transformer should be used. Use minimum 2A transformer for better result.

Heatsink usage on the power IC is a must to prevent overheating and keep the good performance of STK4141II.

Use this STK4141II Datasheet for the circuit reference:

Incoming Search: stk4141, STK 4141, stk4141 stereo amplifier circuit diagram, stk4141 power supply, stk ic 4141, stk4141 ic, stk4141 stereo amplifier, stk4141 ic amplifier circuit

2 thoughts on “2x25W Stereo Power Amplifier with STK4141II

Leave a Reply

Your email address will not be published. Required fields are marked *