Amplifier increased the sound quality and how?

amplifier remove distorsions in primary sound by the use of transisstors😁

amplifier simply raise the voltage (not power amplifier)

its the filters connected...which increases the quality by passing the require harmonics and blockin the outer harminics which produce disturbance..for example. AWGN(average white gaussian noise)

well Amplifiers remove the distortion thats true ...
but only when this distortion or noise frequency is different than the your data signal... BUT if frequencies are same then this will get added into the original signal...

For example :
Noise in FM Radio.. or Bad TV picture quality means combination of unwanted signal with your information signal...


Some basic circuits connected called LPF(Low pass Filter) & HPF(High pass filters) which are the combination of simple resistor and capacitor eliminates the unwanted frequency components before the amplifiers... and once the signal is noise free... then its strength is increased by amplifiers.. So, u get the quality increased...


and in more specific manner....
IN Audio amplifiers.. the frequencies 20Hz -18 Khz is selected which is audible to human ears...and the others are removed or attenuated...


Hope u got ur doubt cleared,,,

if u still have any doubt reply ... 😁