The logical continuation of the power amplifier in the ORIGINAL and kitON's TDA2050 (STM) chip, which has long been discontinued, is a complete amplifier with a power supply and a timbral block.
On a small board, it was possible to place a full-fledged power supply, which means that the power is connected directly to the secondary windings of the transformer with a tap from the middle. And also on the board there is a beautifully sounding timbral block, with volume / bass / midrange / treble control, which will allow you to adjust the tonal balance for any music lover.
We use ORIGINAL TDA2050 ST chips, as well as exclusively high-quality components!
The supply voltage is variable 2x9 ... 18V with a connection at the midpoint.
Power depends on voltage and load current 10-25W

Measurements
Supply voltage AC	20V...0...20V
Load resistance	4 Ohm
Power maximum, W	34
Testing power, W	9
Frequency response (from 40 Hz to 15 kHz), dB	+0.05, -0.02
Noise level, dB (A)	-102,4
Dynamic range, dB (A)	102,4
THD, %	0,0150
THD + Noise, dB (A)	-73,9
IMD + Noise, %	0,0140
Stereo crosstalk, dB	-74,7
IMD at 10 kHz, %	0,0190
Amplifier Measurement Page
Tone Block Measurement Page
General characteristics
Amplifier class	AB
Built-in protection	Yes
Chip	TDA2050
Gain	43
Maximum supply voltage (bipolar / constant) DC	28V
Minimum supply voltage (bipolar / constant) DC	18V
Module size LxWxH, mm	100x100x40
Number of channels	stereo
Supply voltage, maximum (alternating / 2 shoulders on) AC	18V
Supply voltage, minimum (alternating / 2 shoulders on) AC	10V
Weight, kg	0,177