two chips needed 12 volts audiop pwer amp and audio signal gen chip

Hi all

I am looking for 2 chips

1> An audio power amp chip that is operated with 12 volts like those chips used in portable PA amps mounted on cars . Those are operated by the car 12v battery .

2> An audio signal generator that can produce sinus output in the audio freq. range I need it to test audio amps .

Any suggestions ?

Thanks Elico

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