Hey guys, anyone know anything about these are they any good, cost new, vintage, what dac chip/s, outputstage etc etc. There's not much info for me on the net, love to see a circuit diagram on them if anyone has one.
Cheers George
Cheers George
wadia was the granddaddy of high end digital for a while there. the 64 is an older unit. not sure how it would compare to the newer stuff.
a digi 64 would be better then most big buy store units.
a digi 64 would be better then most big buy store units.
That's a start, thanks for that, I did just find out that the were 1300000yn in Japan when new, that's about $13,000.00!!!!!!!
Has anyone any ideas what dac chip was used? for that price I'd expect and want discrete, or at least something very special.
I think I can remember they may have had an output stage, that they called the Sledgehammer what ever that meant? then it could have been another US company.
Cheers George
Has anyone any ideas what dac chip was used? for that price I'd expect and want discrete, or at least something very special.
I think I can remember they may have had an output stage, that they called the Sledgehammer what ever that meant? then it could have been another US company.
Cheers George
the sledgehammer output stage was a Wadia deal. they got slammed in some early reviews due to a weak output stage so they beefed it up. I am not an Wadia expert but i do love there products!
They had some special DA or filtering process. different then anyone else.
They had some special DA or filtering process. different then anyone else.
There is another sub section/layer under the whitish board that houses a massive power supply, transformers ect, also.
Cheers George
Cheers George
Some info
Well I have few informations about the Wadias DAC from early 90.
I know this is in french, but you will find documents in english at the top of the page.
http://www.acec13.fr/tvc/Wadia/Wadia1000.html
Well I have few informations about the Wadias DAC from early 90.
I know this is in french, but you will find documents in english at the top of the page.
http://www.acec13.fr/tvc/Wadia/Wadia1000.html
Thanks renaudagnes
Can anyone decipher what the designer is saying to me in this about the dac section. It's not sinking in. Too early in the morning for me.
http://www.acec13.fr/tvc/Wadia/Ressources/WadiaX64UM.pdf
Cheers George
Can anyone decipher what the designer is saying to me in this about the dac section. It's not sinking in. Too early in the morning for me.
http://www.acec13.fr/tvc/Wadia/Ressources/WadiaX64UM.pdf
Cheers George
May be you can try to read this document, it's explained in a better way
http://www.acec13.fr/tvc/Wadia/Ressources/Wadia 2000 - JAN 90 STEREOPHILE.pdf
http://www.acec13.fr/tvc/Wadia/Ressources/Wadia 2000 - JAN 90 STEREOPHILE.pdf
Basically the output stage and DAC's are not really a special thing in these Wadia players. Shurely they are well designed, but the real secret of these players is the software (or (re)programmable FCPGA or DSP).
The interpolation algorithms are what makes a Wadia player different from others. Basically they use a 11th (or 12th) order polynomial function to generate the extra samples for oversampling.
The interpolation algorithms are what makes a Wadia player different from others. Basically they use a 11th (or 12th) order polynomial function to generate the extra samples for oversampling.
And maybe the fact that the analog filter (because of the previous stages) is very simple and not castrating.
Hi Renaud,
Eric
Probably. Wadia are first DAC with NOS DAC sound. Except it interpolate to 32x or 64X.renaudagnes said:
Eric
Hi my friend !
What about the Wadia X32 in comparison to the Wadia 1000 ?
Did you have enough time to compare the both ?
Whaaa, let me know if the X32 is a proud true Wadia or a waste of money
What about the Wadia X32 in comparison to the Wadia 1000 ?
Did you have enough time to compare the both ?
Whaaa, let me know if the X32 is a proud true Wadia or a waste of money
Wadia X32 uses Digimaster filter software, so yes, true Wadia but lower in food chain then X64.
The one Wadia that is not, ie, no Digimaster software IIRC is the later baby DAC, Wadia 12 .
The one Wadia that is not, ie, no Digimaster software IIRC is the later baby DAC, Wadia 12 .
Well, after the 1000, the X64.4 Digimaster, the X32... I just have to find a 2000 to be complete. 😀
The X64.4 Digimaster is a nice DAC.
A friend of mine use a X64.4 "French Curve", does anybody know where are the difference between the "Digimaster" and the "French Curve"?
In these prehistoric DAC time the Digimaster was more expansive than the "French Curve", but I cannot find / understand why!
The X64.4 Digimaster is a nice DAC.
A friend of mine use a X64.4 "French Curve", does anybody know where are the difference between the "Digimaster" and the "French Curve"?
In these prehistoric DAC time the Digimaster was more expansive than the "French Curve", but I cannot find / understand why!
"French Curve" was the original name for the Digimaster software. They used that name for only a very short time.
Both are based off the exact same idea. Using Lagrangian curve fitting (thus the name "french curve") as the first part of their re-sampling process.
There was one minor difference though. The "French Curve" was a 12th order algorithm while the later Digimaster was an 11th. But functionally and audibly they are the same.
The first intent was to allow end users who were familiar with computer programming to write their own digital filters and write them to replaceable eeproms on the dsp board. They quickly abandoned that idea and named their own algorithm as "Digimaster" with the intent of licensing it to other DAC manufacturers. That also pretty much failed. The company went bankrupt for the first time, the original owners/designers moved on, and the torch was picked up by a new set of engineers who ran with the Digimaster idea keeping it fundamentally unchanged since that time.
Both are based off the exact same idea. Using Lagrangian curve fitting (thus the name "french curve") as the first part of their re-sampling process.
There was one minor difference though. The "French Curve" was a 12th order algorithm while the later Digimaster was an 11th. But functionally and audibly they are the same.
The first intent was to allow end users who were familiar with computer programming to write their own digital filters and write them to replaceable eeproms on the dsp board. They quickly abandoned that idea and named their own algorithm as "Digimaster" with the intent of licensing it to other DAC manufacturers. That also pretty much failed. The company went bankrupt for the first time, the original owners/designers moved on, and the torch was picked up by a new set of engineers who ran with the Digimaster idea keeping it fundamentally unchanged since that time.
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