Built using what I have in my stash. 2n3904 and 2n3906 BJT's, etc. Tested using my phones audio jack. Tested using a 2W speaker from amazon.
Not bad.
Added 4.7 ohm resistors to the emitter of the output stage because of thermal runaway.
Works IRL as configured. Be careful, the output transistors get really HOT! Heat sink recommended. Do not leave this amp unattended when powered.
Have fun with electronic!