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發表於 2024-6-29 14:34:42
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原發表者是 轉貼人
[B]
看你打5A培就知道你沒見過大機器，傳統一聲道100KG 、100W很正常
… [/B]
5.59A是依照A類125W/8R的定義算出來的，不是隨口胡謅的。
看看Gryphon如何談純A類
資料來源:Gryphon Apex Stereo / Mono Power Amplifier Owners Manual
Pure Class A
True Class A operation has always been a Gryphon hallmark. Why? Because no other circuit topology can
match the sonic perfection of pure Class A. Unfortunately, true Class A is even rarer today than when we
introduced the legendary DM100 in 1991. Rising consumer awareness has forced some manufacturers to
make outrageous, unsubstantiated claims of Class A power ratings that have more to do with marketing
than technology. There are a growing number of so-called 「new」 Class A topologies based on automatic
biasing which supposedly allow the amplifier to sense when the bias should increase to ensure constant
Class A performance!
Put bluntly, you can』t cheat physics. There are no engineering shortcuts when it comes to pure Class A, so
we repeat with no apologies: TRUE, PURE CLASS A means heavy transformers, very large heatsinks, large
quantities of expensive parts and costly assembly. While we appreciate and endorse every effort to
conserve energy and preserve our global resources, our research into efforts to obtain Class A performance
from class A/B topologies makes it clear that there simply is no substitute for the sheer magic of pure Class
A.
Google 翻譯
純A類
真正的A類行動一直是 Gryphon 的標誌。為什麼？因為沒有其他電路拓撲可以與純A類的聲音完美
相媲美。
這種認識迫使一些製造商對A級額定功率做出令人憤慨且未經證實的聲明，這些聲明更多的是出於行
銷而不是技術。越來越多所謂的「新」A類拓撲基於自動偏置，據說可以讓放大器感知偏移何時應增
加，以確保恆定的A類性能！
坦白說，你無法欺騙物理學。說到純A級，沒有工程捷徑，所以我們毫無歉意地重複一遍：真正的、
純A級意味著重型變壓器、非常大的散熱器、大量昂貴的零件和昂貴的組裝。雖然我們讚賞並認可為
節約能源和保護全球資源所做的一切努力，但我們對從A/B 類拓撲中獲得A類性能的努力的研究清
楚地表明，純A類的純粹魔力是無可替代的。 |
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樓主: pwyuan
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