A class D amplifier is more efficient than class B, and is more
efficient than class C as well.
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A Class T amplifier will typically cost around $20 to $40. The
Class T amplifier is a small amplifier that produce a great amount
of audio volume for it size.
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class b amplifiers as for class b amplifier the 'Q' point is
near to cut of region.
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A class "A" amplifier amplifies the entire waveform, a class "B"
amplifier only amplifies the first 1/2 of the wave form.
See the images in the related link.
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class b amplifier is in between of a and c.so dont warry abt
ds