Stax dac x1t circuits

[brenden]

Stax dac x1t 

 

 

Edited October 23, 2022 by brenden

[brenden]

 

Edited October 23, 2022 by brenden

[Addicted to music]

@brenden

 

Thanks for sharing,  very rare to see circuit diagrams for Stax components, they keep it to there chest!   Love how they also provided a logic diagram,  it’s been a while since I’ve seen AND or OR and inverted AND and OR gates in diagrams, certainly bring back memories on Boolean Algebra.   

[brenden]

 These are rare . I think its important to preserve this history and for those that are lucky enough to own one to keep them working . 

   Words seem inadequate to describe  the sound of this  . 

   Maybe god like . 

   I have to compare with some top line offerings  but this audiophile  got a shock  once the music  started to play . 

  

  

[Plasmod3]

Man I have been keeping an eye out ut looking to, buy one for the last 2 yrs. No luck so far haha. The stax is phenomenal!! Thanks for sharing:) 

[brenden]

Just to add  some comments on this photo.  I havent seen this section of the Stax dac x1t on the net before . 

  Looking from the top its clear that  the Stax is full of circuitry . Its easy to miss the circuitry  on both sides  . These boards contain the complex regulated power supplies 290v for the tube and + and - 12 v and  +and - 15v  . This is for one channel. 

   Stax is famous for its Super Shunt regulated power supplies and is where much of the magic is created . 

  As you can see this was hideously expensive to manufacture . Even if you think dac chips have progressed  this machine is still state of the art in power supplies  in my opinion . 

   Even the massive  transformers  were wired with pcocc copper !!

Edited October 25, 2022 by brenden

[brenden]

Also interesting is their  use of  those small black tantalum  capacitors and leadless resistors back then . 

[Plasmod3]

what dac chip does the x1t use?

[brenden]

Ultra analog D20400 

   These cost many times the price  of any  dac chip at the time so consequently  only used in  very few high end dacs . 

   

[Plasmod3]

the stax is one amazing dac...i want one!:-)

[fwi297]

On 23/10/2022 at 3:36 PM, brenden said:

 

The image link is not working? Maybe there's something wrong with my computer.

 

Edited July 30, 2024 by fwi297