You are here

Log in or register to post comments
haroon
haroon's picture
Offline
Last seen: 2 years 11 months ago
Joined: Sep 5 2005 - 12:01am
Numerical jitter measurements for dCD Scarlatti DAC?

For John Atkinson:

I am really surprised that there were no numerical jitter measurements for dCD Scarlatti DAC.

I have an excel sheet where I put in the jitter numerical jitter measurements from you. I went through measurement section again and again and the usual lines,

dcstep
dcstep's picture
Offline
Last seen: Never ago
Joined: Sep 16 2007 - 4:59pm
Re: Numerical jitter measurements for dCD Scarlatti DAC?

Good one.

Jim Tavegia
Jim Tavegia's picture
Offline
Last seen: Never ago
Joined: Sep 1 2005 - 4:27pm
Re: Numerical jitter measurements for dCD Scarlatti DAC?

Pull out your copies and compare the Ayre 5 and 7 performance for jitter vs the dcs units. Feb. '09 for the Ayre units and Aug. '09 for dcs, but you knew that.

To me that Ayre C5-XE is, at least, as good if not better with the C7 certaily taking no back seat either. Fig 13 and 15 are upsampled to DSD for the dcs. In fig 14 and 16 what seems to be missing is the 16 bit quantization noise from Ayre graphs.

No wonder the Ayre players are held in such high regard. I wish Mr.Fremmer had one (C5-XEMP) in his system to do a follow up vs the dcs stack. It makes the Ayres a hifi bargain to be sure.

Jim

Editor
Editor's picture
Offline
Last seen: 4 years 1 month ago
Joined: Sep 1 2005 - 8:56am
Re: Numerical jitter measurements for dCD Scarlatti DAC?


Quote:
I am really surprised that there were no numerical jitter measurements for dCD Scarlatti DAC.

I have an excel sheet where I put in the jitter numerical jitter measurements from you. I went through measurement section again and again and the usual lines,

haroon
haroon's picture
Offline
Last seen: 2 years 11 months ago
Joined: Sep 5 2005 - 12:01am
Re: Numerical jitter measurements for dCD Scarlatti DAC?

Thanks John and other members.

However, let me clear it that my intent is to really complete my excel sheet and not to pick on something or someone.

I am not very good at comparing graphs but it is very easy for me to compare number against number when everybody is claiming minimum jitter in the universe for their products. dCS does not look the state of art when it comes to jitter rejection. Not only Bryston BCD-1 CD player graphs looks much cleaner but the number is also low.

How should one explian and understand the logic behind Zanden fans when the product falls in the highest jitter products ever reviewd in Stereophile? If Zanden and its fans are ture then all claims about jitter's relations to quality of sound are wrong?

Bryston, dCS and Zanden camparison review will be an instant hit! Now I just forgot the name of that British magazine that does such comparison reviews.

KBK
KBK's picture
Offline
Last seen: Never ago
Joined: Sep 30 2007 - 12:30pm
Re: Numerical jitter measurements for dCD Scarlatti DAC?

Say John, how's the AP system on it's own for measuring clocking jitter? Does it have a preset function in the software for such a thing? Is it straightforward (to measure and record jitter analysis) to do so?

I'm looking to lease one for that exact purpose and need to know what I'm going to run into before I run into it.

  • X
    Enter your Stereophile.com username.
    Enter the password that accompanies your username.
    Loading