| 21. | Rack mountable power amplifiers were the genesis of the company.
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| 22. | Channel specific multi-watt toggles dictate the power amplifier's operation class.
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| 23. | The 2 circuits make up each power amplifier per channel.
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| 24. | The first Heed Nexus amplifier was a bridged-mode power amplifier.
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| 25. | BMS phonographs lacking a power amplifier or internal speaker could have an optional preamplifier.
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| 26. | The band worked by setting up all the instruments with only a single power amplifier.
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| 27. | It is incorporated in VAC power amplifiers as the iQ Intelligent Continuous Automatic Bias System.
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| 28. | A common setup is the use of a tube preamplifier with a solid-state power amplifier.
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| 29. | When higher power amplifiers emerged, especially in professional sound, the limitations of aluminium were exposed.
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| 30. | An audio power amplifier is usually used to amplify signals such as music or speech.
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