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Old 2nd June 2010, 04:51 AM   #131
LuisMCP is offline LuisMCP  Spain
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Quote:
Originally Posted by Guido Tent View Post
Hi Dan,

Thanks for the feedback

Our first PLL had its' corner at about 3 Hz. Our current mixed mode PLL (Grimmaudio CC1) is at 30 mHz (miliHz) if I recall correctly.

Most DIYaudio people do not have microwave experience, and even if they had, jitter requirements for audio differ quite a lot from those for communication systems.

I have no clue abot the Wolfson approach, do you have a direct link ?

best

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Old 15th March 2011, 11:10 AM   #132
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Default more important to properly couple S/PDIF to receiver chip

Quote:
Originally Posted by Extreme_Boky View Post
It is even more important to properly couple S/PDIF to receiver chip, using adequate PCB layout and adequate circuit / components, but this has been discussed at lengths here as well as "over there"....

Boky
Will it do any good if i mod a DAC by using, for instance a Canare RJ-R 75 ohm RCA female receptacle, and connect it using a 75 ohm coaxial cable directly to the receiver chip ?

However doing so will there be any impedance discontinuity at both ends of the internal coaxial cable solder joints ?

Will this mod make it better or worse ?

Canare Corp.: 75 ohm RCA Connectors: RCA Receptacles
Canare RJ-R 75 ohm RCA female receptacle
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Old 15th March 2011, 11:30 AM   #133
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Default quad shield cable RG6 cable

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Originally Posted by Extreme_Boky View Post
BNC combination at both ends (that is 4 X BNC) works much better than 4 X RCA. In fact, 4X RCA was completely unpredictable and was changing characteristics (sound) with the tiniest little change in cable length…. Internal wiring (within the transport and DAC) should also be executed with coax cable.

I obtained the best results with 2.5m length of RG6 quad shield cable terminated at both ends with BNC connectors. Much better than anything else I've tried.

Another interesting thing: I use almost exclusive properly annealed pure silver ribbons as power cables, speaker cables and interconnects (and internal hook-up wire!) Sounds detailed and very fast - great for valves.... however, nothing matched RG6, BNC terminated, when it comes to S/PDIF.

It is even more important to properly couple S/PDIF to receiver chip, using adequate PCB layout and adequate circuit / components, but this has been discussed at lengths here as well as "over there"....

Boky
What brand and model of quad shield cable RG6 cable did you use ?
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Old 30th April 2013, 09:01 AM   #134
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Default 75Ohm RCA Plug

We can provide you a real 75 Ohm RCA plug to you. Are you interested in it?
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Old 30th April 2013, 09:09 AM   #135
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Which looks like BNC and mates with BNC only?
Then it's BNC...
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