audio amplifer with power supply of 4.5v

[LKSH]

hi i want to built an audio amplifier with very less component with stereo input and output, less complexity and with volume control for my mobile/walkman.
i had two speaker of 2 inch's probably 4 ohms and another set of speaker of 4 inch's, 4 ohm.
please provide a circuit for above requirement.
for 4 inch's, 4 ohm speaker complexity, less component n power supply is not the problem but i want good sound n loudness in it

please provide ckt diagram and pcb layout for above requirement.

thx in advance n ignore any mistake in my language.

 

[Audioguru]

An LM386 amplifier has a minimum supply voltage of 4.0V. Three alkaline battery cells are 4.5V when brand new and their voltage quickly drops to 3.6V where the LM386 will not work.
With a supply of 4.5V the output power at clipping into 4 ohms is 132mW which is almost nothing (headphones level).

A cheap clock radio produces about 500mW. Maybe you need 1W per channel.

A TDA2822M amplifier IC can have its two amplifiers bridged. Then it produces 800mW into 4 ohms at clipping when its supply voltage is 4.5V. Two ICs are needed for stereo.