Hi guys!

I have done the huffmann audio project very well...

BUT: I need help to realize my project. I want a small speaker which plays the sound directly, that means without connecting an extern amp or something. (i want to place it in my RCCar).

So... it would be great if this doenst need more then 5V.. is tihis possible to generate loud sounds? (standing 1-2 metres away fro the car?)

Big THX! Markus

Well, unless you have some serious amps at 5 volts, there is a limit to the loudness.

For the most part, volume is in watts. So 5 volts at 1 amp, you have a capacity of 5 watts. That is plenty loud but you will never achieve that level due to other factors. The loudest amp that I have ever seen at 5 volts is a mere 1 watt of audio. (The rest is in heat)