標題: My 1st DIY project AD1955Pro DAC finished! [打印本頁] 作者: sugargar 時間: 2008-11-8 08:04 標題: My 1st DIY project AD1955Pro DAC finished! After 2 months of time, my DAC finally finished. I've to thanks KK sir and cat sir to help me finish this project as I've very limited DIY experience.
Although this is the 1st, maybe the last time DIY project in the coming few years, I really enjoy the process of making it (sourcing component, testing the effect of different OPA and caps, trouble shooting etc.)
I've compared the quality of 1955Pro DAC with market $10K DAC (Benchmark, Stello etc.) and found that my DAC can win them easily in terms of details, natural , bass and (音牆闊度）and have huge improvement compared with using my modded Cambridge 640C only.
My DAC components:
OPA >> 627BP x 4, AD797 x 2, 2107AP x 2
Transformer >> England transformer x 3 （箭豬）
Core cap >> 4700uf-6800uf (BHC), 100uf x 8 (Blackgate)
47uf - 1000uf (Nichicon KZ), 47uf in digital (Sanyo OS Con)
0.01-0.1uf (Wima MKS,MKP)
4.7uf x 2 Output cap (Auricap)
0.01uf SPDIF in, 4700P cap (双信银云母)
My 2CH Hi-fi components:
Audiolab 8000S(moded), Cambridge 640C (moded), Linn Katan (Bookshelf), MK KX-12 Sub-woofer (crossover set at 80hz)
Enjoy DIY!!
Sugargar作者: accphoto 時間: 2008-11-8 08:27
好重料，的聲如何?作者: sugargar 時間: 2008-11-8 10:31
Sound details, natural , bass and 音牆very 闊, traditional English sound, expecially in vocal,violin, cello :-({|= Excellent! \/作者: alfcat 時間: 2008-11-9 08:31
sugargar,
What is your total expenditure on this one? As Accphoto said, pretty good materials.
CAT作者: sugargar 時間: 2008-11-9 10:26
As I used all high-end components, class fee + self buy components total less than $8k, a bit over my origional budget actually.
I think it is still worth to invest because this DAC still have room for later upgrade and improvement, I can tune the sound by changing components. The real factory 1955pro DAC is selling like $30k, if I only use $8k to make a DAC which can achieve 85%+ performance of the factory DAC, still worth to do so.
I'm still thinking is it worth to add a "Tent" XO clock module ($6xx) in my Cambridge 640C CD player because I don't want to change CD player as 640C clock frequency is 16.9MHz whcih cannot support the I2S reclock from the DAC which required 11.2MHz clock in CD player. I've listened the comparison of using DAC I2S reclock and no I2S, sound really more pure and natural. Adding the "Tent" XO clock can have significant improvement which like or close to using I2S reclock? Anyone can give some suggestion about this?
What's the sound difference between AD1955 and TDA1541A?作者: accphoto 時間: 2008-11-10 14:01
[quote:c352b80c4a="sugargar"]As I used all high-end components, class fee + self buy components total less than $8k, a bit over my origional budget actually.
I think it is still worth to invest because this DAC still have room for later upgrade and improvement, I can tune the sound by changing components. The real factory 1955pro DAC is selling like $30k, if I only use $8k to make a DAC which can achieve 85%+ performance of the factory DAC, still worth to do so.
I'm still thinking is it worth to add a "Tent" XO clock module ($6xx) in my Cambridge 640C CD player because I don't want to change CD player as 640C clock frequency is 16.9MHz whcih cannot support the I2S reclock from the DAC which required 11.2MHz clock in CD player. I've listened the comparison of using DAC I2S reclock and no I2S, sound really more pure and natural. Adding the "Tent" XO clock can have significant improvement which like or close to using I2S reclock? Anyone can give some suggestion about this?
Sugargar[/quote]
Sugargar,
Add a clock certain can improve the sound. But using a cambridge 640CD may not be a good transport by itself. Any interest to meet my heavy modified DAC 60 given the total cost for both machine are very close....
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