Short coax digital cable: qed audioquest ricabl


Hi everyone
Need a short coaxial digital cable to connect amplifier and Cdp, both Cambridge audio. Cd has no dac, just mechanic, dac is in the amp.
1 meter max.

One school goes it's digital, cable makes no difference, spend the last possible. Second school thinks even short cables matter and there are quality cables.

So far I have the Audioquest Forest 0,75m, their entry level, for which I spent 25 €.
I am tempted by Qed Performance, which cost around €60.

I also discovered this: http://www.ricable.com/coaxial-hi-end.html
which seems very good, but not so popular. What do you think. Would this bring improvement over the Audioquest Forest?

Othesr swear by mogami. Others to qed.
Ideas?
thanks
lorcar
Hi Jim,

A notable statement by the person with whom you were debating was:
Are they aware that the S/PDIF interface has a defined jitter margin? If I am remembering correctly, it is +/- 20 nanoseconds for 1 Fs (44.1 kHz/48 kHz) transmission, which is what the vast majority send over S/PDIF interfaces.
I would refer him to the following paper, co-authored by Professor Malcolm Hawksford, a distinguished British professor/academician/researcher/PhD/DSc/Fellow of the AES (Audio Engineering Society)/AES Silver Medal honoree "for major contributions to engineering research in the advancement of audio reproduction":

Is The AES EBU / SPDIF Digital Audio Interface Flawed?

An excerpt from its conclusion:
A simple model of jitter error audibility has shown that white jitter noise of up to 180 ps can be tolerated in a DAC, but that even lower levels of sinusoidal jitter may be audible. These limits place tough constraints upon digital interface design....
180 ps is less than 1% of the 20 ns figure cited by the person you were debating. Also, Professor Hawksford’s paper was presented to the AES in 1992; presumably the increased resolution provided by many of today’s systems makes low level jitter even more of a concern than it may have been in 1992.

Best regards,
-- Al

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