The specification of the amplifier is that it should:
Provide an improved sound quality over the un-amplified output of the MP3 player.
Have an input impedance of at least 100kΩ.
Have an output impedance of less than 100Ω.
Have a frequency response of at least 20Hz – 20kHz (this means that the lower limit
should be <20Hz and the upper limit >20kHz).
Have a volume control.
Operate from a PP3 battery
Have a tone control or cross-feed.
The amplifier is intended for small signal (e.g. input of 100mV), AC, mid range frequency.
I would like to build either a class A or class AB type amplifier.
Any help with the circuit design would be greatly appreciated
