Realization of an audio amplifier ..

[BuonBoy]

Hi!
I'm trying to create an audio amplifier to use with two speakers 4ohm/8Watt each.
As a power supply for the amplifier, I would use a Switching power supply ranging from 5V-3.8A and to a maximum of 24V-1.5A.

If it works, I will present the pSpice schematic for an university exam the exam plans to design an audio amplifier with 3-stage ...

thank you!

 

[Merlin3189]

If you have two speakers of "4 Ohm/8 Watt each", what is the maximum power output?

What is the efficiency of the power amplifier stage you plan to use?

So what power do you need to be able to supply?

Alternatively, just design the amplifier, then calculate its power needs and then specify the power supply. If this turns out to be inconvenient, you could go back and modify your design in an iterative development process.