What Is The Difference In D Class
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plugitin
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She Bangs
search...for the love of god
if that is your only concern with the matter. then dont fret it. will not mess up subs... by using different class amps.
Idealrealist
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THD will always be higher in a class d amp than that of a class A/B.
THD=Distortion
Also, smaller footprint and more efficient.
THD=Distortion
Also, smaller footprint and more efficient.
Class AB is up to 78.5% efficient
Class D is up to 90% efficient
Efficiency means how much of the power put into the amp goes to the speakers as opposed to getting wasted as heat.
Class D is up to 90% efficient
Efficiency means how much of the power put into the amp goes to the speakers as opposed to getting wasted as heat.
Class A amplifiers are desirable for the high quality of their sound, but, because of the configuration of its transistors, a pure class A amplifier is inefficient and runs very hot. This is because even when there is no audio signal, the output transistors always have current running through them. The current flowing through the output transistors (with no audio signal) causes the amp to heat up unnecessarily, and "waste" input energy. Most car amplifiers that boast "Class A" circuitry are really Class A/Class AB hybrids.
The output transistors of Class B amplifiers actually turn off for half of every signal cycle. This improves efficiency and saves energy, but introduces distortion during the switching periods.
By far the most common car amp design, Class AB amplifiers also allow current to run through the output transistors when there is no audio signal, but at a much lower level. A class AB amplifier runs cooler, and therefore, more efficiently than a class A, with low distortion and high reliability.
Class D amplifiers use output transistors as switches to control power distribution — the transistors rapidly switch on and off at least twice during every signal cycle. Class D amps boast higher efficiency, produce less heat, and draw less current than traditional Class AB designs. Class D amplifiers produce higher distortion than AB designs due to the high-speed switching on and off of the transistors, but this distortion occurs at high frequencies that are typically removed by a low-pass filter.
from... http://www.crutchfield.com/S-X8mvwJRsAYx/Learn/learningcenter/car/amplifiers_glossary.html
The output transistors of Class B amplifiers actually turn off for half of every signal cycle. This improves efficiency and saves energy, but introduces distortion during the switching periods.
By far the most common car amp design, Class AB amplifiers also allow current to run through the output transistors when there is no audio signal, but at a much lower level. A class AB amplifier runs cooler, and therefore, more efficiently than a class A, with low distortion and high reliability.
Class D amplifiers use output transistors as switches to control power distribution — the transistors rapidly switch on and off at least twice during every signal cycle. Class D amps boast higher efficiency, produce less heat, and draw less current than traditional Class AB designs. Class D amplifiers produce higher distortion than AB designs due to the high-speed switching on and off of the transistors, but this distortion occurs at high frequencies that are typically removed by a low-pass filter.
from... http://www.crutchfield.com/S-X8mvwJRsAYx/Learn/learningcenter/car/amplifiers_glossary.html
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