Finally did it and built this amp circuit. It is my first "real" circuit from scratch (I have ESP32s and other dev boards, I connect sensors and program, etc). I never really built anything. Everything was recycled from about 10 different electronic devices I picked out of the trash over the past year. For the past month or two, I de-soldered a lot of pieces and learned what they all are and looked up datasheets and read, etc. The amp was from a sound card. Finding this was what decided what I was going to build - I needed some "seed". This circuit was built from the datasheet for the amp IC -- TDA1517P.
I want to take this to another level now. I have piles of resisters, capacitors, transistors, diodes, etc. I would like to increase the power of this little amp just a little bit. Not a lot at all. Just a little boost. I have sets of 2, 4, 6, 8 ohm speakers. This amp is for 4 ohm speakers. The speakers now are 4 ohm, but I know they can handle more power. Would be nice to get a little more out of it. I watched tutorials about building an amp out of transistors instead of a more complete IC like I used, but I never found a way to build on to an IC like this. How to add to it?
Thank you for any ideas or help!