This amplifier circuit is a low power 7 watts audio amplifier based on the TBA810 integrated circuit which can provide a 7 W output power on a 4 ohms or 2 ohms load impedance .
If we using a 4 ohms speaker TBA810 power amplifier circuit needs to be powered from a power supply with output voltage of 16 V and if we using a 2 ohms load impedance is require a 14.4 volts dc power supply  .

The TBA810 is a class B amplifier with high efficiency and very low harmonic distortion .
The input voltage range accepted by this power amplifier circuit project is from 4 volts to 20 volts . Main features of this TBA monolithic power amplifier circuit diagram project are : low noise , few external components required , polarity inversion protection , high supply voltage rejection ( 40dB min.) .
This monolithic audio amplifier can be used in many audio applications for car radios ,other audio devices or portable applications .