| 11. | SOA specifications are useful to the design engineer working on power circuits such as amplifiers and foldback circuits.
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| 12. | Gryphon 100-watt-per-channel class-A amplifiers dissipate over 400 watts per channel even with no signal applied to their inputs.
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| 13. | The LM358 is designed for general use as amplifiers, high-pass filters and low, band pass filters and analog adders.
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| 14. | A push pull amplifier draws little power with zero signal, compared to a class-A amplifier that draws constant power.
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| 15. | Some audiophile equipment, such as amplifiers, continues to be point-to-point wired using terminal pins, often in very small quantities.
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| 16. | Class-A amplifiers can be designed to have good linearity in both " single ended " and " push-pull " topologies.
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| 17. | FETs can also be used as amplifiers for large amounts of current using a small voltage as a control signal.
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| 18. | As amplifiers of the time did not produce much power, the speakers had to be extremely efficient to produce adequate loudness.
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| 19. | This is because a push pull amplifier has a symmetric ( class A amplifiers, which are otherwise required for single-ended linear amplification.
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| 20. | Loudness compensation is difficult to implement, since the audio level at a listener's ears depends on speaker sensitivity as well as amplifier gain.
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