DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 06 Mar 2021, 10:00

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 36 posts ]  Go to page Previous  1, 2, 3, 4
Author Message
 Post subject: Re: DIY CD Player Kits
PostPosted: 19 Sep 2012, 15:26 
Offline

Joined: 19 Sep 2012, 15:24
Posts: 3
Hi, Can you please recommend the best possible and correct Elna capacitors for my Bang & Olufsen Beogram CD 5500 (CD Player). It was manufactured in 1987

My burning desire is to do some DIY on this CD player for maximum performance possible.
Here is the link to some photos for internal parts of this player: https://plus.google.com/photos/10396523 ... 7282290481

I have purchased Elna capacitors.
Should I bother or consider to change this parts as well? (I took a picture of them as well)

DIN 41253
25V-
ROE 4700 F.
W9

And

DIN 41253
EGD -40. 105 C.
25V-
ROE 2200 F.

Is anything else would effect its sound performance by renewing some other parts?

Many Thanks for advice
Mykhailo


Top
 Profile  
 
 Post subject: Re: DIY CD Player Kits
PostPosted: 19 Sep 2012, 23:54 
Offline
User avatar

Joined: 02 Mar 2009, 12:41
Posts: 1111
Location: Vänersborg, Sweden
My advice is: don't repair anything that isn't broken.

_________________
Magnus

“If you don't know where you are going, any road will get you there.”
―Lewis Carroll


Top
 Profile  
 
 Post subject: Re: DIY CD Player Kits
PostPosted: 20 Sep 2012, 05:02 
Offline

Joined: 19 Sep 2012, 15:24
Posts: 3
Hi Magnus,

My goal is to improve the 1987 CD player to the highest most natural sound performance. Many parts greatly improved since that time, and old parts became less performing due to their age. I have changed Audio cables that where original made of aluminum to OFC copper, changed Elna capacitors to SILMIC II - which are the best they ever produced.

Now I'm moving to check some other parts, however as I'm not electrician and just started on Hi-Fi DIY journey I need somebody-else’s advice on what exact part will surly effect analog audio output.

Regards


Top
 Profile  
 
 Post subject: Re: DIY CD Player Kits
PostPosted: 27 Sep 2012, 18:40 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4592
Location: Winnipeg, CANADA
Hi Mykhailo,

I would upgrade the LM833N opamps which are $1 chips. I like Burr-Brown and Analog Devices opamps.

Cheers

_________________
[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


Top
 Profile  
 
 Post subject: Re: DIY CD Player Kits
PostPosted: 09 Apr 2013, 20:48 
Offline

Joined: 09 Apr 2013, 20:31
Posts: 3
I've always been curious about the results of coupling a cheaper cd player with a nicer DAC. You can get a PCM1793 dac with toslink input and rca output on ebay for 45 or so...i've had decent luck with the muse ones to cheaply improve computers with onboard sound processing. If you effectively upgrade the DAC on a cheap cd player by outsourcing it to a PCM1793 which is a pretty high fidelity dac chip wouldn't it in theory sound good? It seems like the reading of data digitally is the easy part of a cd player...its getting it to analog that would be tough....anyone have any thoughts on this...I'm not an expert by any means so I'd love to hear from those who are.


Top
 Profile  
 
 Post subject: Re: DIY CD Player Kits
PostPosted: 13 Apr 2013, 10:36 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4592
Location: Winnipeg, CANADA
There are also aspects of the transport that affect performance, like jitter. But I also think the DAC has the largest influence on the end sound. Ive found that upgrading the DAC and output stage are usually worthwhile.

Welcome to the forum.

_________________
[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 36 posts ]  Go to page Previous  1, 2, 3, 4

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy