VERY SIMPLE POWERFUL CHIP AMPLIFIER

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I would say that this is just a super simple amplifier containing all four elements and delivering 40 watts into two channels!
4 parts and 40 watts x 2 power output Karl! This is a godsend for car enthusiasts, as the amplifier is powered by 12 volts, the full range is from 8 to 18 volts. It can easily be integrated into subwoofers or speakers.
Everything is available today thanks to the use of modern components. Namely, the chip is TDA8560Q.
By the way, you can buy it for real pennies here - TDA8560Q
This is a PHILIPS chip. Previously, the TDA1557Q was used, on which you can also assemble a stereo amplifier with an output power of 22 watts. But it was later modernized by updating the output stage and the TDA8560Q appeared with an output power of 40 watts per channel. Also analogous is the TDA8563Q.

Circuit car amplifier on a chip

In the diagram, a microcircuit, two input capacitors and one filter. A filter capacitor is specified with a minimum capacitance of 2200 μF, but the best solution is to take 4 of these capacitors and parallelize, so you will ensure more stable operation of the amplifier at low frequencies. The chip must be installed on the radiator, the more the better.

Simple amplifier assembly

You can also increase the number of components in the circuit that increase reliability during operation, but not fundamentally.

Five more details were added here, I will explain why. Two 10K ohm resistors will remove the background if long wires go to the circuit. A 27 K ohm resistor and 47 uF capacitor give the amplifier a smooth start without clicks. A 220 pF capacitor will filter out high-frequency noise coming through the power wires. So I recommend to refine the circuit with these nodes, it will not be superfluous.
I also want to add that the amplifier develops full power only at a load of 2 Ohms. At 4 ohms there will be somewhere around 25 watts, which is also very good. So our Soviet acoustics will rock.
Low-voltage, unipolar power supply gives additional advantages: use in car acoustics, at home it can be powered from an old computer power supply.
The minimum number of components allows you to embed the amplifier in exchange for the old, failed, on the chip of other brands.