The frequency response is one of the most common parameter used
to describe audio amplifiers. Sometimes, it can be misleading and not be a good
indicator of its sound quality.
The power amp are perfect for wireless broadcast
transmission and are equipped with hi-fi audio equipment. The one which is mostly
used is bipolar transistor. However, vacuum tubes have become much popular
among musicians. Professionals still use vacuum tube amp as they believe
it provides better or superior fidelity.
The two
important specifications in power amplification are the power output and
efficiency. In any hi-fi audio power amplifiers, what bothers more to the user
is the distortion created by them. It actually measures the extent to which
output waveform can offer faithful replication of this input waveform. It is
very obvious if the distortion is less then the audio equipment can deliver
output sound with better fidelity.
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