A NOS 192/24 DAC with the PCM1794 (and WaveIO USB input) - Page 18 - diyAudio
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Old 25th February 2013, 05:12 PM   #171
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Originally Posted by Bas Horneman View Post
One of my sons. Helping with the denuding of the caps. He got to solder as well and really enjoyed doing that.
Ha! Ha! How much did you give to him?
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Old 25th February 2013, 05:21 PM   #172
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Ha! Ha! How much did you give to him?
Nothing. He owes me a lot of money. Besides he was begging me to assist with something.
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Old 25th February 2013, 05:28 PM   #173
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Quote:
I tried it using copper tape on the power supply cap of my Revox B77 reel deck.
I've had copper around my psu polyprop caps. With one end soldered to ground. Just for kicks as well. Should act as a shield. Anyway. The amp I did that with was dead quiet.

Quote:
PS: Awating delivery of my order sent by Doede. I will be able to report back when I assemble the DAC.
Did you also order the psu for the WaveIO. That really improves things. Or at least power it seperately with your own psu.
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Old 25th February 2013, 08:04 PM   #174
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+1 DDDAC1794. I love it! Here's more
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Old 25th February 2013, 08:23 PM   #175
dddac is offline dddac  Germany
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Originally Posted by mbrennwa View Post
+1 DDDAC1794. I love it! Here's more
Thanks, these Kind of testimonies Keep me going

best,
doede
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Happy listening and building
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Old 27th February 2013, 07:55 AM   #176
bravi is offline bravi  New Zealand
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Hi Bas,

Yes, I have ordered the power supply board as well .
The package came yesterday and hope to start assembling soon.

Cheers!

Ravi
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Old 27th February 2013, 10:31 AM   #177
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Quote:
The package came yesterday and hope to start assembling soon.
Good luck.

I just ordered the 12v psu as well. Because yesterday I changed the 12v psu from the rakk dac mk 1 psu to the rakk dac mk 2 deluxe psu. The mk1 only supplied something like 170mA and has minimal filtering (Something Dave Davenport later fixed in his mk2) since more filtering gave the sound more body. Anyway to make a long story short. The improvement from mk1 psu to mk2 psu was nothing short of stunning. Suddenly I had George Benson in my room .
So now I want to try Doede's psu. And return the mk2 psu to its rightful owner the RAKK DAC MK 2. So I can use that in my other system.

Cheers,
Bas

Last edited by Bas Horneman; 27th February 2013 at 10:45 AM.
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Old 1st March 2013, 12:13 PM   #178
AudioH is offline AudioH  United Kingdom
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Default Balanced Output Options

Hi All,
after following this thread I've taken the decision to order a kit. It is on its way and initilaly I will build it as is with the single ended outputs. Can anyone recommend an add on board or circuit that would provide balanced outputs though please.
Regards
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Old 1st March 2013, 01:31 PM   #179
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Hi Doede,
I have read your explenation on your site, and make mine decision to make one.
Words are words, but still there is something , I think your design is right.
Mine knowwlegde is not sufficient to design the delay in the I2S line.
So, I have order a waveIO board, and collecting / buy parts.
Still a few questions, I can't determine what is the L or R channel, i have read the
blue line in the delay circuit. and,
you use a output trafo, are you still use the A B iv resistors on that position, or
a ristor on the sec side?
I have good experiens with an outputtrafo.
Regards,
Zjaakco
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Old 1st March 2013, 02:42 PM   #180
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Can anyone recommend an add on board or circuit that would provide balanced outputs though please.
It actually is balanced already.
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