amplification

Mark Devlin on The Great 20th Century Music Con

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https://www.youtube.com/watch?v=oEx8QD2lC48  

160,000 watts of RUSH — how loud is that, really? Turns out, only about 8 times louder than a 300 watt amp! And only about 16 times louder than a 30 watt amp!

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The mention of one-hundred sixty thousand watts, holy cow, that’s huge! actually breaks down this way: Every doubling of power is represented as 3 dB, but it takes 10 dB difference to make something sound (to most humans) “twice as loud” or “twice as quiet”. So 160,000 watts sounds only about twice as loud as … Read more

“I don’t always listen to Journey, but when I do so do the neighbors.”

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Other comments from the video, about musicianship, sound quality, singer range, etc., emotion, power, joy — you know, all these guys were good on their instruments. Steve Smith.. never one lick out of place. Ross. same. Jonathan… just solid and a perfect match for the band Nothing flashy. Neil… fiery solos and aggressive playing but … Read more

Contribution of active hair-bundle motility to nonlinear amplification in the mammalian cochlea

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Abstract   The cochlea’s high sensitivity stems from the active process of outer hair cells, which possess two force-generating mechanisms: active hair-bundle motility elicited by Ca2+ influx and somatic motility mediated by the voltage-sensitive protein prestin. Although interference with prestin has demonstrated a role for somatic motility in the active process, it remains unclear whether … Read more

Electron Movement through Solids – Energy Bands and Semiconductors

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Materials vary greatly in their ability to conduct electron flow. A digitalization may take place that has bearing on sound quality and overall performance, fidelity and response. https://www.youtube.com/watch?v=KYYWZhsgVPc