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Old 15th January 2006, 10:59 AM   #1
gjo is offline gjo  India
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Default How to provide a digital coax output on CD player?


I have two players one is a Pioneer DVD player( with coax and optical output jacks) and another is an older Onkyo CD-Model DX CD 540 changer, with only digital optical output, no coax. With a new DAC in the works( from Peter Daniel), I wonder if there is any way that I can wire up an additional coax output jack on the Onkyo player?

At this time I plan to use only an optical output on the DAC. I understand that coax is a better solution, though..

Any input welcome.


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Old 15th January 2006, 02:40 PM   #2
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I can not give you help in building one,but there are optical to coaxial converters for sale.Anyway DIY is propably cheaper.
xxx I should correct my spelling xxx
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Old 15th January 2006, 06:04 PM   #3
Limhes is offline Limhes  Orkney Islands
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Enough schematics can be found here. Most circuits use (small) transformers...
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Old 15th January 2006, 07:28 PM   #4
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If you now have a good DAC, why not insert a Tentlabs XO3 clock into the Onkyo, that way you improve the sound of the Onkyo considerably as a transport and gain a very good digital coax output at the same time, (two birds with one stone). problem fixed.

Cheers George
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Old 15th January 2006, 09:20 PM   #5
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I don't know why everyone keeps using that site as a reference. For background, yeah.......for circuits, no.

George has a better idea.

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Old 15th January 2006, 09:58 PM   #6
Cobra2 is offline Cobra2  Norway
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Default Look:

S/PDIF Digital output

You will find most interesting info here...
and the formula for calculating impedance / trafo...
- cant find it just now...please help me, Katapum.

Arne K
Don't believe everything you think...
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