A NOS 192/24 DAC with the PCM1794 (and WaveIO USB input) - Page 186 - diyAudio
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Old 16th May 2014, 06:50 PM   #1851
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I can already state with great certainty that the Panasonic Fc equipped dac board sounds richer, with more complex harmonics and still crisp and tight, than the Nichicon Muse board
best
Leif
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Old 17th May 2014, 02:00 PM   #1852
carlsor is offline carlsor  United States
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Leif,

Did you mean 10pf Micas? The 10nf micas are huge and expensive.

Thanks
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Old 17th May 2014, 05:08 PM   #1853
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sry yes
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Old 18th May 2014, 09:20 AM   #1854
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sry checked again and its 1nF Silver Mica
best
Leif
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Old 18th May 2014, 09:39 AM   #1855
Zeta4 is offline Zeta4  United Kingdom
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Hi

Ive just finished building one of Doedes excellent kits (single version for now) mainly
to research USB cables but thats another story. My version uses an LT1963 with L/C
pre filtering and schottkys etc to supply the WaveIO and a 12V Lead Acid battery to supply the DAC. Ive found that LA batteries vary and the best so far for me are those made by Haze which are very quiet and have low impedance.

Im not saying this is the best set up but its what I had to get me going. Ive read all the
back posts re power supplies with interest. Keep it up.

I also design transformers so Im making some for the DAC with 1-4 and 1-2 step up. The 1-4 hopefully will allow me to try out lower value I/V resistors.

By the way its been said that passing DC through a signal transformer will magnetise it. This is not true as you cannot permanently magnetise a soft magnetic material. There is always a very small amount of magnetism left in the core when the magnetising force is removed this is called remanence. I can just pick up small nickel laminations with a steel screwdriver.

Anyway its perfectly safe to measure the DCR of transformer windings, I do it all the
time. If you dont believe me see the Sowter website under FAQ where he confirms what I have said.
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Old 19th May 2014, 07:32 AM   #1856
dddac is offline dddac  Germany
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Interesting point on the magnetizing. this is very reassuring! thanks for sharing with us.
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Happy listening and building
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Old 19th May 2014, 07:38 AM   #1857
dddac is offline dddac  Germany
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comment on earlier post.....
please check your facts before writing negative comments...
pricing went up 10 Euro to cover the VAT which needs to be payed as they are a true company....



in hindsight, I might have been a bit harsh here, which was never the point of course.

I do like to emphasize that Audiocreative is, other than me, being private person, a real company and need to pay VAT. for this reason prices had to go up. we have made sure this was limited as much as possible and med the increase low, like 10 euro. Exchange rate differences compared to past might trouble comparison as well for those outside the EU. I still believe the value for money for these kits are good

for Thommy, no hard feelings of course
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Old 19th May 2014, 07:59 AM   #1858
rfthon is offline rfthon  Netherlands
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Imo a second deck would be the best upgrade.
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Old 19th May 2014, 08:02 AM   #1859
rfthon is offline rfthon  Netherlands
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Quote:
Originally Posted by Touister View Post
Hello,

I can not decide myself. Need help

I have a single deck version stock
I am looking for improvements.

My current output capacitors are Jantzen Superior Cap (which I believe average).

What would be the best upgrade of the output stage:

1) CINEMAG 15/15B (POS / NEG)
2) Mundorf Silver Gold Oil (POS / COM)
3) Mundorf Silver Gold Oil (POS / NEG)
4) Change Dale I/V resistors for Vishay Naked or something fancy (in addition of another tweak)


Additional question: Where can I find the power supply tweak?
Sorry, in reaction of above question.
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Old 19th May 2014, 08:19 AM   #1860
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Quote:
Originally Posted by leifchristensen View Post
....the Panasonic Fc equipped dac board ....
Did you replace "all" the caps on the DAC board with these FC's with what/same values?
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