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Old 14th August 2008, 02:15 PM   #1741
JeroenR is offline JeroenR  Netherlands
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Old 14th August 2008, 02:50 PM   #1742
kevinkr is offline kevinkr  United States
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Quote:
Originally posted by JeroenR
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Very nice!

The suggested divider is for spdif over coax, you drive a totx directly as you are doing.

FWIW toslink optical is inferior - your shigaclone really deserves the best bnc/coax set up you can manage. Make your other devices compatible with it, not the other way around and you will have no regrets.
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Old 14th August 2008, 03:24 PM   #1743
JeroenR is offline JeroenR  Netherlands
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Very nice!

Thanks!! Showing off one's concoctions is part of the fun I guess.

Quote:
Originally posted by kevinkr


The suggested divider is for spdif over coax, you drive a totx directly as you are doing.

FWIW toslink optical is inferior - your shigaclone really deserves the best bnc/coax set up you can manage. Make your other devices compatible with it, not the other way around and you will have no regrets.
Aha, so I need a switch before the divider then. Thanks.

My other project is a pcm1794 (Twisted Pear) with RAKK tube output. I want to feed that from my Airport Express so I need a toslink anyway on the DAC (next to a BNC of course). Having a toslink on the transport would then be just for convenience.

And... for now I have a single TDA1543 DAC with only toslink to test.

Jeroen.


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Old 14th August 2008, 04:01 PM   #1744
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Quote:
Originally posted by JeroenR


Thanks!! Showing off one's concoctions is part of the fun I guess.



Aha, so I need a switch before the divider then. Thanks.

My other project is a pcm1794 (Twisted Pear) with RAKK tube output. I want to feed that from my Airport Express so I need a toslink anyway on the DAC (next to a BNC of course). Having a toslink on the transport would then be just for convenience.

And... for now I have a single TDA1543 DAC with only toslink to test.

Jeroen.



Get rid of the toslink on your tda1543 dac and I expect you will notice some significant improvement. The receiver IC should accept spdif levels without a problem or you can google for a simple spdif receiver..
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Old 14th August 2008, 05:16 PM   #1745
JeroenR is offline JeroenR  Netherlands
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Get rid of the toslink on your tda1543 dac and I expect you will notice some significant improvement. The receiver IC should accept spdif levels without a problem or you can google for a simple spdif receiver..

The receiver in the TDA1543 DAC is a cs8416 Twisted Pear board that has a transformer spdif input so I could try that (it is hidden under the DAC print). Again, I do want to be able to use the Airport Express sometimes (music and movies). I'm a bit stuck though on how to switch between BNC and toslink without compromising the BNC quality.

Thanks for the input Kevin!!!

Jeroen
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Old 14th August 2008, 05:24 PM   #1746
kevinkr is offline kevinkr  United States
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Quote:
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The receiver in the TDA1543 DAC is a cs8416 Twisted Pear board that has a transformer spdif input so I could try that (it is hidden under the DAC print). Again, I do want to be able to use the Airport Express sometimes (music and movies). I'm a bit stuck though on how to switch between BNC and toslink without compromising the BNC quality.

Thanks for the input Kevin!!!

Jeroen
It might take some improvisation but it would probably be a good idea to convert the airport express to spdif as well. Use a good spdif transformer for isolation, and I would recommend adding a cm choke ahead of the transformer. Take a look at my old media server thread for some details on cm choke/transformer combo.. Does your CS8416 board have an option for not using the transformer? It doesn't seem to be necessary with the Shigaclone (I'm not using one in my clone or dac) according to Peter as well, and with the suggested mods you don't need it with the airport either. (Note that my current sound card does have a transformer, but the output is not isolated from the computer chassis as far as I know. (Haven't checked) Sounds fine going through two transformers though (and in a lot of pro and very high end gear this would also be the case.)
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Old 14th August 2008, 05:45 PM   #1747
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I bought one unit. I will have it in aprox. 10 days.
Price: ~ 40 Euros.

Hope I`ll be pleased

Can somebody give me some chassis drawings ?
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Old 14th August 2008, 08:07 PM   #1748
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I made a start by trying to dismount the motor from the laser sled and mount it 1 mm underneath that platform ...the motor this time mounted to the thick copper enclosure....
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Old 14th August 2008, 08:08 PM   #1749
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I use a dummy spindle motor and a dummy platform to fool around with...
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Old 14th August 2008, 08:10 PM   #1750
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My aluminium laser platform will be detached like I try to point out here....
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