CD-ROM數位輸出 + 脈衝變壓器
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之前搭棚的4390常常無緣無故有嘶聲跑出來,改穩壓,並OSCON等等 "撇步" 都宣告失敗,從LPF測回去之後確定是8412以前的線路出問題。最後死馬當活馬醫用VHC04加上0.01u串330 & 100歐母的電阻分壓後並連脈衝變壓器輸出,上電之後耳機就 "靜悄悄" 啦
嘶聲沒了之後同一片CD聽起來完全不同,原來HD-414有這樣的水準,是我錯怪你了,給你吃大餐果然就給我好臉色看
建議有同樣症狀的人試一試,效果不錯 
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嘶聲沒了之後同一片CD聽起來完全不同,原來HD-414有這樣的水準,是我錯怪你了,給你吃大餐果然就給我好臉色看

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