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Old 23rd June 2011, 09:59 AM   #731
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Hi antonioo,

Quote:
If i understand it : we get a total of 8-9 shunts. Isn't it posible to reconsider the shunt's this way :
1 shunt pcb with +19/-19/+15 (15v in the open space in the middle)
My shunt modules are only one possibility to power the DDNF I/V module.
You could also use anything else that makes a stable output voltage.

Quote:
May be the new psu pcb can feed the DAC also?
That is absolute correct. If you dont want to use the ultra low ESR +/- PSU module,
you could also use the new 3 line PSU module with one big cap per rail.


Best regards,
Oliver
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Old 23rd June 2011, 10:52 AM   #732
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Let's see...

We need 3 shunts for the TDA1541A: -15vdc +5vdc -5vdc

We need an extra +5v shunt for the i2S attenuator on the TDA1541A board

That's how the project started off, I believe.

Then we added the USB input from the Teralink X2, which ideally will take it's own +5v supply rather than being USB powered from a computer. Ideally it would have it's own independent +5vdc supply, but sharing one with the i2s attenuator sounds excellent to my ears. For space constraints, I'd say share away! Ideally, however, do as Oliver has done and separate them out.

Then there's the output stage, which on this project IMHO, everybody should try the Tube-I-Zator, which works well as a stand alone, with incorporated power supply.

If you like the Tube-I-Zator, and I certainly do, you will "need" an HV shunt for the Tube-I-Zator to get the very best from it. +120vDC

Then, if you want to add co-axial or even tos-link input, you can use the twisted pear modules, with more shunt regs required and then there's the USB isolator, and then there's the i2s switcher, all requiring 5vdc or 3.3vdc. Some of these do NOT need a separate independent shunt reg at all (i2s switcher is just powering relays for example and won't interfere with a digital circuit on the same supply.)

Have I left anything out? It's a lot of shunt regs for sure, and a lot to fit in a single case. I still don't have a case - I need a MASSIVE case! Maybe I will use 2 like Oliver.
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Old 23rd June 2011, 04:00 PM   #733
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I go for a case the same size as a marantz cdp50,

At the moment i use 4 shunts and one HV shunt for my preampilfier.(6sn7gtb)

The tubizator pcb is around but not yet in use.
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Old 23rd June 2011, 04:26 PM   #734
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I am forced to go for a 2-box solution.... 8 shunts....
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Old 25th June 2011, 02:39 PM   #735
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Quote:
Originally Posted by studiostevus View Post
Looking forward to your impressions
1st listening impressions in the DDNF thread.
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Old 1st July 2011, 12:37 PM   #736
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Has anyone had the chance yet to compare this dac with other high-end dacs?
e.g. ecdesign's 'ultimate' tda1541a or well-regarded commercial dacs.

Would be very interesting to know where our dacs stands amids the competition.
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Old 7th July 2011, 06:56 PM   #737
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Hi Oliver,
After some weeks of having both output stages, which one do you prefer?
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Old 8th July 2011, 05:15 AM   #738
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Quote:
Originally Posted by studiostevus View Post
Hi Oliver,
After some weeks of having both output stages, which one do you prefer?
Its difficult to compare both, because they are both great but have different characteristics.

For my personal taste and in sum of all characteristics ill stay with the Tube-I-zator,
but i am thinking about to integrate a switchable solution in my DAC.

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Old 12th July 2011, 05:35 PM   #739
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Exclamation Bargain Sale

Bargain Sale


Because i need space for the next generation of my DAC,
you could order my ready build DAC module V2.2 with direct input modification
for the special price of


$40 each


Click the image to open in full size.


Worldwide shipping: $ 9
paypal fee: 3,9%


If you are interested, please send me a PM.



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Old 22nd July 2011, 09:05 AM   #740
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Quote:
Originally Posted by dvb-projekt View Post
Bargain Sale


Because i need space for the next generation of my DAC,
you could order my ready build DAC module V2.2 with direct input modification
for the special price of


$40 each


Click the image to open in full size.


Worldwide shipping: $ 9
paypal fee: 3,9%


If you are interested, please send me a PM.



Only one left!
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