Not exactly your project then is it? You just picked a circuit off the net now you wanna pick the brains of people here to fill out information and turn it in? There's quiet a few things going on in that circuit, nothing excessively complex, what exactly are you having trouble with?
my work colleagues said exacally the same! the transisters are the push pull part of the circuit and the op amp amplifies the circuit! they couldnt explain the feedback tho! they also said that C3 and C4 were references for the opamp! would you agree?
The original simple audio amplifier is on that website (18W Amplifier using an opamp with a higher voltage rating for a higher output power) without the bass-boost control.
my work colleagues said exacally the same! the transisters are the push pull part of the circuit and the op amp amplifies the circuit! they couldnt explain the feedback tho! they also said that C3 and C4 were references for the opamp! would you agree?