The audio amplifier is an additional device positioned
between your source of audio and your headphones which provide additional power
to your headphones simply by amplifying the audio signal. There is a relative lower
power increase that too from standard output through a headphone jack, when
partnered with right headphone.
The headphones with good inbuilt amplifier will surely
deliver audio performance that suits you best. These amplifiers help in increasing
headphone listening and serve as a pre-amplifier in order to switch between
multiple player inputs. They do have the capability to drive both headphones
and provide preamp output for speaker system.
The term headphone amplifier impedance many a times comes to your
mind when one thinks about listening to music. The impedance is an electrical
load which is the combined resistance and reactivity presented to amplifier. This
high impedance is needed for voltage to get good listening level which surely benefits
an amplifier. These low impedance requirement needs more current that lessens
the damping factor between the amplifier and headphones. This impedance of
headphone can drive many portable players that too more loudly, thus improving sound
quality of an amp.
