Shan Ling CD300

dear mr chen

i am interest to modify the  cd300 as well, can you help me

contact 96273999

sure!

Dualxeon or other shi fu,

May i know how the led green light can affect the sound quality?

陳先生,本星期曰(15)中午12點得閒嗎?期侍CD機又升級了!

faisir
OK,no problem.I will call you today for details.

Thankyou!!

我的CD300摩改後,音樂通透、悠揚、甜絲的感覺，陣陣滲出，沁人心扉。更不用說那離箱、音場定位的表現了。當然，這也有TELEFUND 6922的功勞。
Jensen銅管銅膜電容，配合膽機(TELEFUND 6922)，產生的威力，使我有：已有此機，夫复何求的感嘆!
套句陳煐光的俗語：可聽過世的機子。雖然夸張些，但從此覺得“一分錢一分貨”，不可儘信也。
本人設備：
CD: shanling CD300 OP cap replace with Jensen copper foil $6000+1400
PRE amp: Image 7A $3700+$500(Philip 5AR4)+$450(Telef 6922)
Pwr amp: MF A308CR Snd hand $9000
Cable: CdP&gtRE  Schuman XLR>RCA $760
           PRE&gtWR Delta A99 RCA        $1000
Pwr Cable: CDP 古仔      $220
                 Pre  Schuman  $750
                 Pwr amp: 古仔 $550
Total24330

why兄
恭喜你又進一階!

Hi everybody,
I didn't read everything but the PCM1794 looks like the PCM1792, same characteristics than in my Cayin CDT-17A.
So it is a real symetric scheme according to the specifications of the PCM. You have one PCM per channel. You have also from PCM to RCA output, for each channel:
- 4 X monochips AD847 I/V Section Op Amps.
- 2 X monochips Differential Section Op Amps: it looks like OPA627...
- 1 X monochip single-ended RCA Op Amp: to convert from XLR to RCA. I can't read but it looks like OPA627 as well.

NB:
Firstable, OPA637 can't be used in this CDP. OPA627BP are quite better than OPA627AP. Try to change AD847 by OPA627 in I/V section.
If you use only RCA output, take off the last (single-ended) OPA AND the RIGHT OPA of each channel on differential section (when you look at PCB from PCM to RCA output). So you keep only the Four OPA in I/V Section and the LEFT one on Differential Section. So you use only one "half-PCM", but you might be astonished...
If you use only XLR output, take off only the last OPA (single-ended) for each channel. You don't need them for output XLR. IMHO, the XLR (symetric) output should be much better than RCA output (asymetric=not symetric).
About the Tubes:
First hypothesis: each tube works for RCA OR XLR output: try to listen to the music without tube by RCA. If it works, then RCA doesn't need tube, and then tube is for XLR output. If it doesn't work with RCA but without tube, then the tube works for RCA output.
Second hypothesis: each tube works for both (RCA AND XLR) output. It means actually that half tube is used for RCA AND XLR output tube at the same time.
Actually, I think that tube works for XLR OR RCA output. So one kind of Output doesn't need the tube.
And to conclude, the best tube I have ever tried in my Cayin CDT-17A is Mullard E188CC "shield" BVA gold pins. But I have to try Siemens CCa "grey plates", RTC E188CC and AEG E88CC...
Here is a link of my tweaked Cayin CDT-17A:
http://www.homecinema-fr.com/forum/viewtopic.php?t=29777877&postdays=0&postorder=asc&start=0

NB2:
I tried discret AOP, superclock from Bursonaudio. They are far better than OPA627.



I hope that my reply will help you.
Best regards,
teiki arii.

very good price in this price range. :

[quote:dc7896b373="ewcl"]very good price in this price range. :[/quote]

陳生好很幫人, 抵錫

ewcl兄
你有好多貴機，有機會再家訪!

Does anyone know if the RCA output does/does not utilize tube and OPA627 ? My pre-amp does not have xlr input so I am stuck with rca output only.
If XLR is indeed superior than RCA, I guess I can use the Cardas XLR-RCA adapter ?? Anyone use those and recommend it ? I prefer to keep signal as simple as possible (i.e no adapter in between)

Mr Chan:
Is your XLR-RCA interconnect a complete DIY ? It says Schumann series on the jacket ?

I am a newbie and I dont know how to type in Cantonese.  

wongmb
You can use the schumann XLRtoRCA cable. It is the best and direct way. the cable body is come from US and solder the terminals in HK.If you want to try,just call me 94206363.It is free of charge for trail.
Mr Chan

[quote:c8078d870d="chan000"]ewcl兄
你有好多貴機，有機會再家訪![/quote]

隨時歡迎 :

[quote:dff9899518="ewcl"][quote:dff9899518="chan000"]ewcl兄
你有好多貴機，有機會再家訪![/quote]

隨時歡迎 , 今期試緊Audio Aero Prima cd player:[/quote]

I compare the spec on the CD300 to the T-80 and the T80 actually has better spec ???
                               CD300            T-80
THD                         0.05%             0.003%
Dynamic Range        100db              115db
S/N ratio                  105db              115db

Does it mean that the T-80 is actually better and for less ??

I thought those are important numbers that dictate how a cdp sounds.

Any thoughts ?

Hi Chan Sir,

I'm new to the forum and i don't have XLR input on my Musical Fidelity integrated  amp. After reading this thread,  i'm interested in your hand made XLR to RCA Schumann Seriess cable at 1.0 m length.

regards,
Jasper
Melbourne, Australia

現在先嚟玩Shan Ling CD300...會唔會out咗呢.....?

用黎聽歌都冇話out唔out,就好次仲有好多人玩LP一樣,最重要就是啱聽啱用就得啦.

回復 119# Ferragamo2000


    師兄，呢條thread四年前有多啦！