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聊耳機、品音樂、論音響、玩電子DIY以及哈拉風花雪月的地方新完成的USB-DAC，請大家鑑賞，並指教！
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由 lifaung 發表於 週五 6月 20, 2003 11:00 pm
好棒,就剩下裝箱摟
不過為什麼不將之前敗的黑盒子用上去阿???
不過為什麼不將之前敗的黑盒子用上去阿???
主力機:PCM1794+PGA2320 Dual Mono+TPA6120
耳擴主力機:惡搞版LCKING CLASS A 1W+1W
工作處主力機:PCM1794 Upsampling
工作處耳擴:LC KING CLASS AB 25W+25W; LENHMANN BCL; Beyer A1; Morgan Jones With 12AT7
耳機:K501,K701,Music1,SHP1000
未來計畫:SONY MDR-F1;Sennheiser HD800!
耳擴主力機:惡搞版LCKING CLASS A 1W+1W
工作處主力機:PCM1794 Upsampling
工作處耳擴:LC KING CLASS AB 25W+25W; LENHMANN BCL; Beyer A1; Morgan Jones With 12AT7
耳機:K501,K701,Music1,SHP1000
未來計畫:SONY MDR-F1;Sennheiser HD800!
- lifaung
- SR325
- 文章: 1637
- 註冊時間: 週日 1月 06, 2002 11:21 am
- 來自: ,,
由 Tux 發表於 週六 6月 21, 2003 1:53 am
Peleus 寫:Lifaung兄∼
因為〞聽說〞Rifa比較好聲啦！加上手頭有，所以就試試囉！
不過考量裝箱的難度(因為交連電容突出PCB板，會讓USB接頭無法突出箱外)，最後也許會換Blackbox，也不一定！
請原諒新手的〞猶豫不決〞！
I love BlackBOX more than Rifa
Very Beautiful! All Holco 
ELNA LT Regulators
Which type of diodes are you using ?
Maybe you can try to get some ultra fast /soft diodes..
this can give u even better sound quality...richer sound
The two small 10uF next to the big DC coupling cap belongs to analog part... I do think use ELNA/Blackgate would be better than OS-CON
World is analog, digital is famous. (failmos)
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Tux - SR40
- 文章: 0
- 註冊時間: 週五 4月 11, 2003 12:05 am
- 來自: 香港特別痕症區
由 Peleus 發表於 週六 6月 21, 2003 8:55 am
To Tux~
About the Diodes, I do not know the type, but the sales said it is ultrahigh speed in 35ns. I heard that the higher speed, the more pure power. That's why I try it! For avoiding the opening-closeing noise from the diodes, I used the Philips MKP cap. I would like to here your suggestion of the type of diodes. I do not know well about the relationship between the diodes and the quality of sound.
The regulators in digital power source is LM, not LT. I once try to buy some LT regulators, like LT 1086, from digikey, but it cost too expensive, so I give up and buy LM regulators from KEC.
About the OS-Con caps in the analogal power, I will make a decision after I here the sound. However, It may take a long long time because I do not have the amp and loudspeaker yet. I make the USB-DAC, gainclone(using TDA7294 chip), and loudspeaker(using a full-range driver, Fostex FF85K) at the same time. So, there are lots of work to do.
Using Rifa or WIMA Blackbox, it is hardly to get good answer. So, once again, whether chang it or not, I will make decision after here the sound.
Thanks your interests and suggestion. Any correspondence will be welcome.
About the Diodes, I do not know the type, but the sales said it is ultrahigh speed in 35ns. I heard that the higher speed, the more pure power. That's why I try it! For avoiding the opening-closeing noise from the diodes, I used the Philips MKP cap. I would like to here your suggestion of the type of diodes. I do not know well about the relationship between the diodes and the quality of sound.
The regulators in digital power source is LM, not LT. I once try to buy some LT regulators, like LT 1086, from digikey, but it cost too expensive, so I give up and buy LM regulators from KEC.
About the OS-Con caps in the analogal power, I will make a decision after I here the sound. However, It may take a long long time because I do not have the amp and loudspeaker yet. I make the USB-DAC, gainclone(using TDA7294 chip), and loudspeaker(using a full-range driver, Fostex FF85K) at the same time. So, there are lots of work to do.
Using Rifa or WIMA Blackbox, it is hardly to get good answer. So, once again, whether chang it or not, I will make decision after here the sound.
Thanks your interests and suggestion. Any correspondence will be welcome.
追求極緻，絕不妥協！
如果錢夠的話....呵
如果錢夠的話....呵
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Peleus - SR80
- 文章: 277
- 註冊時間: 週二 4月 22, 2003 9:27 am
- 來自: 台灣，台北
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