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Car Audio Equipment
Amplifiers
Ups/downs of class A/B or D amps?
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<blockquote data-quote="thch" data-source="post: 6688396" data-attributes="member: 562032"><p>its partially the efficiency rating, but also the efficiency when in use.</p><p></p><p>class D tends to be pretty efficient from 10% to 100% rated power.</p><p></p><p>class AB tends to have ok efficiency at 100% rated power, and really poor efficiency at lower output power.</p><p></p><p>the result is that turning the volume down might not reduce the system's draw by as much as expected. this can be annoying if the electrical system is susceptible to heavy loading.</p><p></p><p>I've noticed that a big part of this subject is the tuning of the amp, and the music used for tuning. when you try to overemphasize certain qualities, you can get poor results. try listening to a variety of music with punchy bass, deep bass, generally loud bass, ect... the above can be true if you tend to re-tune your system, as you'll tend to optimize it to sound the best with the music you're listing to at that time.</p></blockquote><p></p>
[QUOTE="thch, post: 6688396, member: 562032"] its partially the efficiency rating, but also the efficiency when in use. class D tends to be pretty efficient from 10% to 100% rated power. class AB tends to have ok efficiency at 100% rated power, and really poor efficiency at lower output power. the result is that turning the volume down might not reduce the system's draw by as much as expected. this can be annoying if the electrical system is susceptible to heavy loading. I've noticed that a big part of this subject is the tuning of the amp, and the music used for tuning. when you try to overemphasize certain qualities, you can get poor results. try listening to a variety of music with punchy bass, deep bass, generally loud bass, ect... the above can be true if you tend to re-tune your system, as you'll tend to optimize it to sound the best with the music you're listing to at that time. [/QUOTE]
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Ups/downs of class A/B or D amps?
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