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LM1875 30 watts power audio amplifier electronic project

Using LM1875 power audio amplifier integrated circuit can be designed a very simple audio audio amplifier that can provide a maximum output power of 30 watts on a 8 ohms load .
LM1875 manufactured by National Semiconductor is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.
The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.
The amplifier is internally compensated and stable for gains of 10 or greater.
The distortions for this circuits are approximately 0.015 at 1 Khz and can be supplied by a source between 16 and 60 volts DC.
This Schematic need a double power supply +- 25 V and the integrated circuit needs to be mounted on a heatsink and must be isolated form the ground .

Electronic Circuits: 
Circuit Diagram: 
LM1875 30 watts power audio amplifier electronic project