SimontY said:
My wallet is never shut (as you know Simon) unfortunatly there is no spare cash for the superclock3.
There will be sometime after crimbo though as im modding my mates 63KI and he will have the superclock 2 from mine 😀
The reason i'm going for the superclock 3 is because I swapped my superclock 2 for a superclock 2b. The only difference on the pcb was the regulation circuit. Sound wise there was slightly better treble control with the 2b. So straight away I thought of the 3.
Brent
Hi,
you guys/gals never stop!
Would it be reasonable to ask if there is a foreseeable end date by which you could give us a summary of the mods that work best?
Is there a list of recommendable mods that work?
you guys/gals never stop!
Would it be reasonable to ask if there is a foreseeable end date by which you could give us a summary of the mods that work best?
Is there a list of recommendable mods that work?
The mods are listed in the mods lists 
It only ever ends when every single component has been upgraded LOL.
For me all the elecrolytic caps need changing , opamps and seperate regs for every 5v rail (and of course extra tx's for them) + clock.
This gives a huge increase in audio abilty.
Apart from changing the clock for an even better one my mods have been stopped for about 5-6 mths, ive spent that time upgrading and reserching mains problems.
+ my cdp is still running in LOL
Brent
It only ever ends when every single component has been upgraded LOL.
For me all the elecrolytic caps need changing , opamps and seperate regs for every 5v rail (and of course extra tx's for them) + clock.
This gives a huge increase in audio abilty.
Apart from changing the clock for an even better one my mods have been stopped for about 5-6 mths, ive spent that time upgrading and reserching mains problems.
+ my cdp is still running in LOL
Brent
Thanks Poynton,
Okey Dokey, I'm learning ... but I am stil unclear why the lists say that "6800u or 2200u" was used? if 100u ~ 470u is OK?
Is it because the original lists do (did) not envisage these caps were to be placed after (new) regulators ... but now the lower capacitance values reflect the placement of these additional regs?
Peter V.
Cheers,
k.
Okey Dokey, I'm learning ... but I am stil unclear why the lists say that "6800u or 2200u" was used? if 100u ~ 470u is OK?
Is it because the original lists do (did) not envisage these caps were to be placed after (new) regulators ... but now the lower capacitance values reflect the placement of these additional regs?
Peter V.
Actually I believe you fully that the sound is excellent and were it not for the fact that I am away from the player for extended periods of time I might consider it. However I am given to understand that they need some run-in time and not only that, they also need to be kept run-in. If I come home after a period away, I would like to relax with my music straight away, I guess I don't really want to spend several hours / days (whatever) getting abck to the "optimum" stage that they offer. Personal taste and circumstances, that's all.
Cheers,
k.
This would seem to have been asked before, but personal tastes, new technology (e.g. the newish LM4562 opamps) and the quest for perfection seem to have pushed this crusade to a new plane.AndrewT said:
However I partially agree with Andrew, I'd really like to see a "current" set of recommendations (after all the thread is for C63/67, and CD53 is also OK) for these players.
k.
AndrewT said:
Original mods lists:
Rays original CD_57 mods http://www.diyaudio.com/forums/attachment.php?s=&postid=807669&stamp=1136549165
Rays original CD_63 mods http://www.diyaudio.com/forums/attachment.php?s=&postid=603078&stamp=1111503524
Rays original CD_67OSE mods http://www.diyaudio.com/forums/attachment.php?s=&postid=603080&stamp=1111503598
Rowemeisters CD63KI List http://www.diyaudio.com/forums/attachment.php?s=&postid=865386&stamp=1141910747
Rays Updated lists:
CD52 http://home.quicknet.nl/qn/prive/ra.vdsteen/pdfs/CD52mkII_mods.pdf
CD57 http://home.quicknet.nl/qn/prive/ra.vdsteen/pdfs/CD57_mods_II.pdf
CD63 http://home.quicknet.nl/qn/prive/ra.vdsteen/pdfs/CD63_mods.pdf
CD65 http://home.quicknet.nl/qn/prive/ra.vdsteen/pdfs/CD65II-SE_mods.pdf
CD67OSE http://home.quicknet.nl/qn/prive/ra.vdsteen/pdfs/CD67OSE_mods.pdf
Comparison lists:
CD57vsCD67OSE http://www.diyaudio.com/forums/attachment.php?s=&postid=1040234&stamp=1161839445
All mods in 63 can be applied to 67. Lots of the circuits are identical apparently.
Ok, a bit cheeky and temporary, but I've popped the mods list on one of my work websites:
http://www.eurolinkcourses.co.uk/simon/
😉
http://www.eurolinkcourses.co.uk/simon/
😉
Hi,
is there an easy way to link newcomers back to post 4868?
and it's replacement when it becomes obsolete?
is there an easy way to link newcomers back to post 4868?
and it's replacement when it becomes obsolete?
AndrewT said:
Yeh, click on the link at the top of the post and then copy and paste the address from the address bar. That will take you to the post again. You could bookmark it.
Simon
Glenn2 said:
Hi,
What did you simulate exactly, only the L/C combo? Try to add a second capacitor, before the L. That would be the post-reg capacitor that's there in real life situation too. This could cure the resonance.
Regards,
Ray
ian21 said:
Hi Ian, and welcome. I'm glad you like this thread
.You can forget the cross-bending part, it was a way to fit a LM337 regulator on the Eddie Wang board that was originally designed for a LM317, it's obsolete now. You have to reverse two pins on the 337 by careful bending to make it fit. I don't think anyone ever got what the heck I was talking about, and since I didn't take any pictures to back it up: just forget I ever mentioned this bending stuff 😀.
Ray.
jksmurf said:
Hi Kristian,
The caps didn't get smaller all of a sudden, the 53/63 has a different PCB, with less room for big caps. The 57/67 PCB allows big 30mm caps. If you take a look at both manuals or the photo's you'll notice the difference.
Regards,
Ray
Things were twisted re. the cap size. Big caps before regs have never not been recommended by anyone to my knowledge.
The caps after the regs, or more specifically those next to the circuits they feed, are often said to be best kept small. The old TNT article is the exception to this, and my experience of using 4700uF at each location confirms that it works well.
However, the cap quality is more important than the size, it would seem. And when you factor in the physical size and cost of "premium" caps such as Black Gates, a smaller value is generally needed for practicality. I don't think anyone will tell you that a 4700uF Black Gate won't sound good next to the DAC's analogue pins, but it won't necessarily fit easily or be cost effective.
Simon
The caps after the regs, or more specifically those next to the circuits they feed, are often said to be best kept small. The old TNT article is the exception to this, and my experience of using 4700uF at each location confirms that it works well.
However, the cap quality is more important than the size, it would seem. And when you factor in the physical size and cost of "premium" caps such as Black Gates, a smaller value is generally needed for practicality. I don't think anyone will tell you that a 4700uF Black Gate won't sound good next to the DAC's analogue pins, but it won't necessarily fit easily or be cost effective.
Simon
6h5c said:
Doh, OK I get that one 53/63 vs 57/67. Thanks!
But I am still confused about this (sorry for sounding so daft but you all know what you are talking about). Peter seemed to have initially installed the 4700u from "the lists", went to a (admittedly) very good BG 470u and you said (paraphrased) "that's fine its a good cap" (which I understand) BUT then you went onto mention 1000u as being a big cap for around the DAC and Opamps.
Am I confusing C805 C806 with "around the DAC and Opamps". If so, can someone please tell me (with numbers if possible) exactly what is meant by the oft-referred to phrase "around the DAC and Opamps". Is it all the caps listed in the sections of the lists or just some?
k.
SimontY said:
Thanks Simon, I remember reading back Brent where he says he uses says 3300uF on the input of a reg. 😕 (for a Tx)????
k.
jksmurf said:
Big before the reg, smaller/higher quality after the reg. Best quality cap directly next to the circuit being fed.
"Around the DAC and opamps" refers to those caps local to those circuits. That is nothing specifically to do with the caps before or after the regulators.
Simon