Marantz CD63 & CD67 mods list - Page 794 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 10th October 2007, 12:38 PM   #7931
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
I use the exact same HexFreds in my cdp. I found them to help the dynamics of the sound a very tiny bit over the schottky I were using.
I have been looking and you can get 4amp versions now HFA04TB60 and they are alot cheaper than the 8amp ones.

Brent
  Reply With Quote
Old 10th October 2007, 01:12 PM   #7932
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
I have finalised a few of the tx upgrades and sorted a few loose ends on clocks and reg locations where possible.

Simon saw it in the flesh yesterday.

SEE PICS HERE

Brent
  Reply With Quote
Old 10th October 2007, 01:15 PM   #7933
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
I had a very pleasent listening session at Simons last night with good ales and a nicely improved sound over the last visit a few months ago.

Very sweet vocals, plenty of natural bass and good treble timing.

Brent
  Reply With Quote
Old 10th October 2007, 02:03 PM   #7934
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Default Mostly off-topic

Quote:
Originally posted by rowemeister
...a nicely improved sound over the last visit a few months ago.

Very sweet vocals, plenty of natural bass and good treble timing.
Thanks man!

The improvements are:

* use of Marantz MA-500 mono power amps
* massive toroid in preamp
* BG AC type in preamp
* C1 clock on servo in CD63
* S Power on DAC analogue in CD63
* S Powers on output stage

I'm pretty sure none of those mods were in place last time.

The sweet vocals are a product of the Marantz amps and the Black Gates in the preamp.

The treble timing was improved by the C1 on the servo, as were detail levels.

The S Powers on the output stage took that treble and made it clear and present. Forthright and accurate.

Simon
  Reply With Quote
Old 10th October 2007, 02:06 PM   #7935
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
err no dont thinks so, maybe the DAC analogue had the SPower on.

Excellent news on the regs. It pleases me.

Brent
  Reply With Quote
Old 10th October 2007, 04:20 PM   #7936
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Quote:
Originally posted by rowemeister
I have finalised a few of the tx upgrades and sorted a few loose ends on clocks and reg locations where possible.

Simon saw it in the flesh yesterday.

SEE PICS HERE

Brent
Hi Brent

Incredible pics...... really great stuff there.

Can you suggest an upgrade opamp for the audio section of my CD 53 SE ?
__________________
RC
  Reply With Quote
Old 10th October 2007, 05:50 PM   #7937
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
Thanks

I like the audio from the LM4562NA, especially with black gate caps on the power rails, if you don't want black gate then Cerefine or Silmics are decent enough.

Brent
  Reply With Quote
Old 10th October 2007, 05:56 PM   #7938
Thomo is offline Thomo  United Kingdom
diyAudio Member
 
Thomo's Avatar
 
Join Date: Nov 2006
Quote:
Originally posted by rowemeister
Thanks

I like the audio from the LM4562NA, especially with black gate caps on the power rails, if you don't want black gate then Cerefine or Silmics are decent enough.

Brent

I agree. Also check out the Rubycon ZA, ZL etc caps. These sound excellent also.

Lee.
__________________
/\/\/\/\/\/\/\/
  Reply With Quote
Old 10th October 2007, 06:34 PM   #7939
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Quote:
Originally posted by rowemeister
Thanks

I like the audio from the LM4562NA, especially with black gate caps on the power rails, if you don't want black gate then Cerefine or Silmics are decent enough.

Brent
Thank You brent

I would like some gidance on this because I am not familiar with the concept.

May I just replace the opamps without any more mods ?

Are these the same size and the same pin distribution as the original ones ?

What about the power input... does it need to be modified ?

Must I do some major modifications in the original PCB layout?

Regards
__________________
RC
  Reply With Quote
Old 10th October 2007, 07:01 PM   #7940
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
No modifications required the opamps are a straight swap, I would however recommend shorting out the 4 feed resistors right next to the opamps. This seemd to give more punch to the bass.

Brent
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 02:57 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2