PDA

View Full Version : Whats the best DIY low jitter clock for my CD player?



Wakefield Turntables
28-10-2014, 11:29
My TEAC VRDS 25x has had the following mods :-



Both original Oscillator Circuits are replaced with XO Clock3 SE Oscillator Modules
Sample Rate Converter and Digital Filter IC's replaced with our superior Upgrade Boards
Additional Toroidal Transformer is installed for Analog Power Supply
All Op Amps are exchanged for better Types
I / V Conversion Stage: 2x D-DIP with two OPA627 mounted
Analog Filters and Output Stages: 4x T-SIL with one OPA627 mounted
Analog Filters changed to Bessel Characteristic and realized with Polystyrene Capacitors
All Resistors in Analog Signal Chain replaced with Welwyn RC55/0,1%
Differential Amplifier realized with Vishay S102 High Precision (0,01%) Resistors
Power Supply Capacitors for Digital Part replaced with Oscon Capacitors
Power Supply Capacitors for Analog Part replaced with ELNA Silmic II
Bypass Capacitors replaced with Wima MKP02


I was considering adding a masterclock and my interest was piqued when I heard about http://www.antelopeaudio.com/en/products/10M-atomic-clock My CD player cant accept a masterclock like this but I'd like to upgrade the clocks which live in my CD player. I understand that it has an accuracy of 5ppm which is pretty much like the Trichord clock 4 upgrade. Can anyone suggest anything better?

The Black Adder
28-10-2014, 11:32
Speak to Audiocom... :)

Desmo
28-10-2014, 12:04
You should also talk to Dave Pritchard at Net Audio. He has some very good value clocks.

The Black Adder
28-10-2014, 12:09
You should also talk to Dave Pritchard at Net Audio. He has some very good value clocks.

+1

Wakefield Turntables
28-10-2014, 12:27
Speak to Audiocom... :)

Done and contact Trichord as well.

AlexM
29-10-2014, 14:52
I know a good clock with low jitter is a good thing, but I must say that the improvement when I fitted a superclock to my CD player was pretty negligible. I guess it depends on how good the existing clock is, and other factors such as clock signal distribution.

Wakefield Turntables
29-10-2014, 15:28
I know a good clock with low jitter is a good thing, but I must say that the improvement when I fitted a superclock to my CD player was pretty negligible. I guess it depends on how good the existing clock is, and other factors such as clock signal distribution.

Probably so. I have done a little research and it seems that most clocks get no better than 5ppm which is better than the clock on the CD. I'm probably going to spend so time and money looking at discrete improvements to voltage regulation and PSU installation.

roob
01-11-2014, 18:26
Tentlabs available from Chevron Audio;)
http://www.chevronaudio.co.uk/html/upgrades.html
Doh didn't see the diy bit, sure Colin would sell you the boards though if he has any in stock
When I had a Teac P100 transport I had the Chevron std clock fitted, certainly was an improvement to these ears.

DSJR
01-11-2014, 18:31
This is going back a very long time, but I seem to remember the 25 was pretty damned good to start with and in reality, didn't need loads doing to it from what I can remember, unlike the 10SE and lower. Jitter is a done and dusted thing now and no longer a problem to modern DACs apparently. This ain't going to scratch your itch though, as you've done loads to the machine already, so good luck with it :)

By the way, are you sure you haven't overdone it with output chips. 'Faster' ones go right out to MHz frequencies which is what you don't need with CD. Maybe Audiocom will put me straight here.