ATC 同好會

TMSulcata · 發表於 2012-3-3 10:05:05

RCA805 發表於 2012-3-2 23:14
Ching are plyaing CAS. Could you share more information??

Hi RCA hing, I am just low hand in CAS and I am just half way on the road, fortunately, a nice c hing help me to set up my minimal Linux which is one of the main factor to build a good CAS.
Other than the core os, you have to treat the hardware well, especially power supply, since computer is a very noisy machine, but when you treat it well, it really gives very good performance
And, actually a well treated CAS involve $$$$$.

Clock play a good role in CAS. at least in my case:)

There are many approach in CAS, lots of information in Internet.

RCA805 · 發表於 2012-3-3 23:24:13

本帖最後由 RCA805 於 2012-3-3 23:32 編輯

TMSulcata 發表於 2012-2-29 22:16
Hi RCA hing, I just simplely take 'anti look' off the shelf solution, the 10M plus trinity.
The ex ...

HI TMSulcata,

It means clock, power supply and OS are key factor on CAS.

My finding is inlined to you. power supply is important. I spent a lot of time on studying power supply as well.

TMSulcata · 發表於 2012-3-4 00:06:44

RCA805 發表於 2012-3-3 23:24
HI TMSulcata,

It means clock, power supply and OS are key factor on CAS.

電源係一個大學問，我都係一半跟人腳步，花的鈔票多，回報少，但總算效果不太差。
另外hardware間電污及data flow 都要講究，我就用了optical I/O 分開了mobo及soundcard, 系統靜多了。
將來會加入linear psu 獨立比CPU 同底板，希望再有進步。

How stupid I am....因未太識用minimal Linux，佢係行command的，對生手來講不易，今日花些時間搞搞，自己研究一下，發現原來未set好word clock輸入，好，試一試，掂，搞好，play歌.....
OMG!!!!

44.1 file 就好似SACD甘多資訊，所有野都在其應在的位置，超正，boss都話乜甘大分別。

如果真的換了ATC active 後果會.....

RCA805 · 發表於 2012-3-4 09:48:47

TMSulcata 發表於 2012-3-4 00:06
電源係一個大學問，我都係一半跟人腳步，花的鈔票多，回報少，但總算效果不太差。
另外hardware間電污及d ...

電源係一個大學問，我都係一半跟人腳步，花的鈔票多，回報少，但總算效果不太差。

Agree, power supply is a "art". My friend pay high attention on it.

另外hardware間電污及data flow 都要講究，我就用了optical I/O 分開了mobo及soundcard, 系統靜多了。

You mean interference. Maybve due to ground noise. As I know most of people don't like the sound of optical in HIFI

將來會加入linear psu 獨立比CPU 同底板，希望再有進步。

Sure, linear power supply is better than switch mode power supply. I belevied one of the reson CAS sound thin is due to switch mode power supply. Switch mode powers supply generate a lot of noise. In fact, linear PSU is also 一個大學問.

How stupid I am....因未太識用minimal Linux，佢係行command的，對生手來講不易，今日花些時間搞搞，自己研究一下，發現原來未set好word clock輸入，好，試一試，掂，搞好，play歌.....
OMG!!!!

44.1 file 就好似SACD甘多資訊，所有野都在其應在的位置，超正，boss都話乜甘大分別。

Wow!!

如果真的換了ATC active 後果會.....

Why not! Please join us

RCA805 · 發表於 2012-3-4 09:53:27

本帖最後由 RCA805 於 2012-3-4 09:55 編輯

Show my firend power supply part

TMSulcata · 發表於 2012-3-4 10:52:27

RCA805 發表於 2012-3-4 09:53
Show my firend power supply part

wow, power plant at home

may I know how these power supply works? they work individual for each gear, or they work in a chain?

RCA805 · 發表於 2012-3-4 10:57:40

本帖最後由 RCA805 於 2012-3-4 11:00 編輯

TMSulcata 發表於 2012-3-4 10:52
wow, power plant at home
may I know how these power supply works? they work individual ...

My firend use 4 running spring power filter and 1 transperence AC power filter.

I also don't know the detail. He told me some were connected in chain( series).

TMSulcata · 發表於 2012-3-4 11:05:30

RCA805 發表於 2012-3-4 10:57
My firend use 4 running spring power filter and 1 transperence AC power filter.

I also don't know ...

Good approach to have power supply conditioner in a chain.
Each PS conditioner product apply different approach, and usually toward a particular area of conditioning, and some negative effective may result from some kind of PS, so apply different PS product in a chain means have more all round improvement.
I use filter + balance power + regen., result is quite promising

Stryer · 發表於 2012-3-4 11:09:49

RCA805 發表於 2012-3-4 10:57
My firend use 4 running spring power filter and 1 transperence AC power filter.

I also don't know ...

RCA805 · 發表於 2012-3-4 11:25:45

Stryer 發表於 2012-3-4 11:09

Hi Stryer,

Where are you now??

I am working hard on our new toy in my home.

RCA805 · 發表於 2012-3-4 11:29:32

TMSulcata 發表於 2012-3-4 11:05
Good approach to have power supply conditioner in a chain.
Each PS conditioner product apply diffe ...

Yes, he tried many combination to make a more all round performance

Expect AC filter.

This is another example on playing attention on power supply.

external power for Weiss transport and DAC

RCA805 · 發表於 2012-3-4 11:45:59

本帖最後由 RCA805 於 2012-3-4 11:46 編輯

attached photo

external power supply for WEISS

The idea is disabled internal power transformer of WEISS transport and DAC.

Built over size external power supply ( in the middle)to feed WEISS

Stryer · 發表於 2012-3-4 11:47:18

RCA805 發表於 2012-3-4 11:25
Hi Stryer,

Where are you now??

Hi RCA,
I am also at home, just wake up. Waiting for lunch with family.
Still in thinking about the CD transport, too expensive in HK, but don't know DIY transport in GZ is OK or not

TMSulcata · 發表於 2012-3-4 11:57:37

RCA805 發表於 2012-3-4 11:45
attached photo

do you mean AC/DC and feed into Weiss internally? or Weiss did accept DC input?
this is the final mile to make a AC/DC.

RCA805 · 發表於 2012-3-4 12:02:12

Stryer 發表於 2012-3-4 11:47
Hi RCA,
I am also at home, just wake up. Waiting for lunch with family.
Still in thinking about t ...

HI Stryer,

Don't need to be in rush.

I need to collect more information and analysis

Stryer · 發表於 2012-3-4 12:05:15

RCA805 發表於 2012-3-4 11:45
attached photo

Someone said Weiss CD transport is used with Philips CD PRO2, is it right?

RCA805 · 發表於 2012-3-4 12:07:05

TMSulcata 發表於 2012-3-4 11:05
Good approach to have power supply conditioner in a chain.
Each PS conditioner product apply diffe ...

I use filter + balance power + regen., result is quite promising

You are using three kinds of know how

1) filter---normally is inductor and capacitor
2) Balance-------isolation transformer with balance connection to reduce commom mode noise
3) Regen---------AC to DC and then generate low distortion AC power.

This is the first time I hear this combination.

RCA805 · 發表於 2012-3-4 12:11:10

本帖最後由 RCA805 於 2012-3-4 12:21 編輯

Stryer 發表於 2012-3-4 12:05
Someone said Weiss CD transport is used with Philips CD PRO2, is it right?

Weiss and my Chord are used CD ProII

There few point need to think about which is low jitter digital output by SPDIF or I2S.

I buy "I2S" connection concept. It is more advance than traditional SPDIF

RCA805 · 發表於 2012-3-4 12:15:20

TMSulcata 發表於 2012-3-4 11:57
do you mean AC/DC and feed into Weiss internally? or Weiss did accept DC input?
this is the final ...

This is a logic game. 4 cow better than one cow

Internal power transformer is only 30W.

External power supply is 4 power transfomer and rate power is around 200W. Feed AC to Weiss

The idea is quite similar to UK Naim power supply for their CD upgrade

hksarac · 發表於 2012-3-4 14:28:37

TMSulcata 發表於 2012-2-20 00:52
有無人知ATC pro 版同家用版除外觀上，有乜吾同呢？

ATC 50 AT 家用版

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