I came across many posts in many forums claiming that the Tda2030,2040, 2050 etc which are split supply chips can also work to their Full on Single Supply. One such claim by an author is here -

https://drive.google.com/file/d/1OzKKzB4XTcTpoj_zQGQ8iPABkxCqURRS/view?usp=drivesdk

Please check this and tell me whether it's really possible or not.

I have so far failed to get max power on Single supply with these chips!