[s1rrah]

If anybody is curious ... here is a shot of the new Stockholm v2 DAC internals. 
 
This is the board where they have bypassed the PCM56K's internal OPAMP section:
 
...
 

 
...
 
Cheers.

 

[loserica]

  If anybody is curious ... here is a shot of the new Stockholm v2 DAC internals. 
 
This is the board where they have bypassed the PCM56K's internal OPAMP section:

I see already some Black Gate and V-Caps there

...Oscon's are the best for the digital stage section, no doubt.
 
@Joel,
 
when you start a modding with this beauty?

 

[brodacz]

Hi!
I have a question. May I use 0,10uF caps as a input capacitors? I have some Audyn TC 
As a output capacitors they sound great (0,47) ! 

 

[mako44]

Sure you can. However if you already got Audyn TC on output I would try more neutral caps elsewhere too avoid a too typical result but Audyn TC are great ones so you would not be wrong anyway.

 

[Stephen Murphy]

I am doing some more upgrades on my Havana and I am ordering some Schottky diodes from PartsConnexion. I have read through this thread several times but can't seem to nail down the exact type to order. They have several types to choose from:
 
1A 600V
4A 600V
5A 1200V
6A 600V
10A 600V
10A 1200V
 
Price ranges from $1.50 to $24.95 each. (I hope the cheaper ones are the best!)
 
Which of these is the correct spec? I need 8 of them.

 

[kimchee411]

  I am doing some more upgrades on my Havana and I am ordering some Schottky diodes from PartsConnexion. I have read through this thread several times but can't seem to nail down the exact type to order. They have several types to choose from:
 
1A 600V
4A 600V
5A 1200V
6A 600V
10A 600V
10A 1200V
 
Price ranges from $1.50 to $24.95 each. (I hope the cheaper ones are the best!)
 
Which of these is the correct spec? I need 8 of them.

 
I used 600V 2A from Mouser:
 
http://www.mouser.com/ProductDetail/Cree-Inc/C3D02060F/?qs=D3QG1iK7FqhDcfNooQXNgA==
 
That value is referenced as viable somewhere in this thread.  Works for me.

 

[kimchee411]

 
 
If one were to upgrade JUST the output caps of a Havana DAC? What would you all say would be the best choice and why?
 
Thanks...

 
My vote would go to Rike Audio S-Caps.  The depth of detail and separation and dynamics are incredible, and the tone is very natural as well.  The details do not come in the form of harsh, overly-highlighted highs, as some might fear from such a description.  It is a very well-balanced cap.  Exactly the injection the stock Havana needs, in my opinion.

 

[Stephen Murphy]

Thanks for the Schottky info. Will those Rikes fit into the Havana? They look huge!

 

[kimchee411]

0.47 uF should fit.  They are smaller in diameter and length than V-Cap CuTF, which many of us have used.

 

[Stephen Murphy]

I was thinking of the 2.2uf for C33 and C35. They are 40mm X 40mm X 26mm.

 

[kimchee411]

  I was thinking of the 2.2uf for C33 and C35. They are 40mm X 40mm X 26mm.

 
You can use 0.47 uF instead of 2.2 uF with no ill effects.  I believe it was Robeeert1 who discovered this with V-Cap CuTF so several of us went with it.  Sounds great!

 

[robeeert1]

You can use 0.47 uF instead of 2.2 uF with no ill effects.  I believe it was Robeeert1 who discovered this with V-Cap CuTF so several of us went with it.  Sounds great!

0,47uF for outputs will do the great job...
No higher values are needed in the case of Havana

 

[loserica]

   
My vote would go to Rike Audio S-Caps.  The depth of detail and separation and dynamics are incredible, and the tone is very natural as well.  The details do not come in the form of harsh, overly-highlighted highs, as some might fear from such a description.  It is a very well-balanced cap.  Exactly the injection the stock Havana needs, in my opinion.

I agree, Eugene.  S-Caps are very neutral and create the feeling of capacitors disappearance (without caps)...Instrument and voice tonal colours are very slightly enhanced over no cap. I think, they are the best for Havana in this price category.

They works very well in this DAC! If I had more money, would have changed all film capacitors with Duelund Cast PIO. If Rike sounds so good, I imagine how would sound Duelund. Would be close to perfection, IMHO..
 
 ... however, Rike & V-Cap CuTF = audiophile delight.

 

 

[Stephen Murphy]

For some reason my Havana is giving me the red light and blue light at power up and won't go beyond that. It has been fine in the past. Can anyone tell me what the red indicates? Digital signal or electrical issue?

 

[Stephen Murphy]

Turns out it was a digital issue. One of the contacts on my spdif cable came loose. Soldered it back on plugged in and green light is back!