Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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

worth replacing the pcm56p-k in an old cd player?
worth replacing the pcm56p-k in an old cd player?
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 7th September 2007, 02:04 PM   #1
badbrother is offline badbrother  Taiwan
diyAudio Member
 
Join Date: Sep 2007
Default worth replacing the pcm56p-k in an old cd player?

Hi, greeting from a novice.

I got a Denon dcd-1700 from a 2nd-hand equipment store, am aware the model is 18 years old, and it used to be a top-of-the-line model from Denon.

I am quite impressed with the built quality of this machine (it is really built-like-a-tank), and it does play reliably even with cd-r discs. It seems to me it could be a keeper so I am toying with the idea of doing some modification on it.

Being a novice, i am only aware of the simplest modifications, namely, replacing the caps and op ams at the analogue output stage (done).

Now, I am enticed by the notion that the 16-bit pcm56p-k can be replaced by a pin compatible 18-bit pcm61p.

Can use some advice on the following :

1. Does replacing the pcm56p by an pcm61p "automatically' give me an 18-bit decoding player ? That the pcm61p has the in-built capability to add the extra 2-bits of data to the 16-bit CD signal for decoding, and no extra component need to be added to realize true 18-bit decoding.

2. Is there a significant audio quality improvement for such modification ? Or should other modification take priority?

Thanks
  Reply With Quote
Old 7th September 2007, 06:43 PM   #2
Bernhard is offline Bernhard  Germany
diyAudio Member
 
Bernhard's Avatar
 
Join Date: Apr 2002
Location: Munich
For the pcm61 the digital filter would have to output 18bit but it does not. Anyway the 61 is not better.
  Reply With Quote
Old 7th September 2007, 08:34 PM   #3
badbrother is offline badbrother  Taiwan
diyAudio Member
 
Join Date: Sep 2007
Quote:
Originally posted by Bernhard
For the pcm61 the digital filter would have to output 18bit but it does not. Anyway the 61 is not better.

Thanks for the input Bernhard
  Reply With Quote
Old 8th September 2007, 08:17 AM   #4
lucpes is offline lucpes  Romania
diyAudio Member
 
Join Date: Dec 2003
Location: Romania, EU
Send a message via Yahoo to lucpes
What I would do is socket the things and also get the AD equivalents which are AD1852 and AD1861 as far as I remember - I mean why not play around a bit
__________________
We should no more let numbers define audio quality than we would let chemical analysis be the arbiter of fine wines. Measurements can provide a measure of insight, but are no substitute for human judgment. Nelson Pass
  Reply With Quote

Reply


worth replacing the pcm56p-k in an old cd player?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Output Current from PCM56P K? georgehifi Digital Line Level 30 16th May 2009 07:50 PM
Sony SCD333ES - worth upgrading or buying new player? brianboru Digital Source 2 8th March 2008 01:45 PM
replacing diodes in my tubed-cd player jarthel Tubes / Valves 3 12th July 2003 03:03 PM
Worth fixing an old cd player ? Nay9 Digital Source 0 7th January 2003 01:45 PM


New To Site? Need Help?

All times are GMT. The time now is 04:08 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki