Schiit Yggdrasil Upgrades

one reviewer mentioned killer dac--upgrade from a very Good source.

Can you point/post this link??

Cheers George

It was told to me from another sourse ,whom is very good friends with  a very respected reviewer which 2 past leads were spot on !! I will leave it at that.

So no one should buy a Yggy until the upgrade is released? Is that what you're saying? Because I was about to buy one for Christmas.

Your saying that the coming upgrade is not a software upgrade but a new hardware release? Wouldn’t that be a completely new DAC model since one of the promises of the Yggdrasil is that it is future upgradable?

I don’t think it is right to make a claim like this without fully revealing the source since this could negatively impact sales. Either step up and do a full disclosure or don’t post a rumor. That's what this is, an unsubstantiated rumor.

Now someone needs to contact Schitt to get to the bottom of this.

I hope this isn't true since I just bought one!

I don't speak for the company but if there is an upgrade it will be in the form of a pcb replacement, either the USB, DSP or analog board. If and when it's available, that upgrade will be offered as an add-on to the base model and will probably be in the same format as the other buy buttons -- pick the base model and then pick the add-on from a menu with the associated price.

Implying that future buyers are going to get the upgraded unit at the same price as today is misleading and, IMO, not a nice thing to do.

Myself and others have emailed Schiit  and told them the red wima cap they use are a weak link 2 friends in the U.K have upgraded to these far superior 
Coupling caps  ,Schiit totally ignored my tip .I heard it first hand with a Hifi tunjng supreme fuse ,even that they refuse to install evrn if you send it to them ,how 
Foolish  you get a solid opportunity to improve the unit for -0 effort and nothing
I evrn offered to send caps for their unit No Charge and pay labor to install 
They refused. That is why these guys did theirs more detail ,depth and musicality 
For less then $40 in capaciyors. They must have bought 1,000s of Wima caps for all units use the same . Without question a Solid upgrade.have some one install 
You can do yourself if handy with a soldering iron.
http://www.partsconnexion.com/capacitor_film_amtrans_amch.html

limniscate
68 posts
12-17-2016 6:05am
I hope this isn’t true since I just bought one!

If you just got it then you can send it back for a refund as they have a trial period.

But then this new model could be hoax as well.

Ask Schiit about you sending it back, because you want the newer model that’s coming and see what they say.

Cheers George

@audioman58

Those "red" WIMA  caps are generally considered to be fine caps Polypropylene caps . Your last post is now causing me to question your first post.  With all due respect, of course.

Fo yourself a favor,  email Chris Johnson,  tech, owner of parts connecxion.
I am not here to debate but tell it straight.I know capacitors better then most 
Myself just finished molding my whole system and upgrading system capacitors
I have done since 2000. Am transformers is a precision capacitor much more so then wima which is just over a average capacitor at best. If you have not experimented with other capacitors vs wima then there is not much to debate. 
Do email the tech ,Chris at parts connecxion he has compared ,and  check out this reference, 
Humble homemade hifi capaciyor test. Please note there are several excellent capacitors not listed due to testing is by companies that Donate samples .

the red wima cap they use are a weak link 2 friends in the U.K have upgraded to these far superior Coupling caps

Hate to inform everyone, but there are no coupling caps. The Schiit Yggdrasil is direct coupled from D/A converter chip all the way through to the outputs with dc servos handling any dc offset.

Quote Schiit:
Analog Stages: Fully discrete JFET buffers for balanced output and discrete JFET summing stages for single-ended output, direct coupled throughout.

Schiit hold to the theory that the best coupling cap is no cap!

The Wima cap that was changed was probably a power supply bypass cap for electrolytics, and the red Wima is about the best you can get for this duty.

Cheers George

There is 6 Wima caps per channel 12 in total. 
Without question in the signal path. I heard both Yggdrasil units with Wima caps 
And with the Amtran caps.  Not one person picked the sound with the Wima caps.
The proof is in the listening.  I have nothing else to say on the matter .
I was just relaying the upgrade option .It is up to you what you choose to do or not.

From the Yggdrasil circuitry explanation
"direct coupled throughout"

Sorry but direct coupled, means it’s dc coupled throughout, this means, "no caps" in the signal path, sorry to say someone’s having a lend of you. The Wima’s are all to do with power supply by-passing.

Cheers George

Personally I think Wima caps are hugely overrated and over-relied upon. Cornel Dubelier are much better sounding in electronics IMHO and not much more expensive.

I think there’s a little misunderstanding. DC or direct coupled means that the signal path is not interrupted by a capacitor. This means that the signal relies on one side of a cap as input, the other as output. However, that’s not to say there are not caps shorting to ground from the signal. Bypass caps in the power supply, or signal can affect the sound quality, but we expect it to be to a lesser degree than coupling caps.

The only way to know for sure is to trace the signal.

Best,

Erik

The only way to know for sure is to trace the signal.

Good luck with that, being a multi layered PCB.

Or you can believe what  Mike Moffat, formerly of Theta said about the  description of the circuit topology, that the Yggdrasil:
Quote: "is direct coupled throughout"

Cheers George

I personally got this upgrade and it is a Very Good upgrade and a bargain
at the results it delivers.

https://forum.audiogon.com/discussions/aftermarket-upgrades-for-schiit-audio-dacs

audioman58 your other thread that you started yesterday which was a duplicate of what you just posted above, it wreaked of shilling, and the mods saw fit to remove it.


As for your previous statement

audioman58 OP
2 friends in the U.K have upgraded to these far superior
Coupling caps. Schiit totally ignored my tip .I heard it first hand with a Hifi tunjng supreme fuse ,even that they refuse to install even if you send it to them ,how Foolish. 

I would too.


Hate to inform everyone, but there are no coupling caps. The Schiit Yggdrasil is direct coupled from D/A converter chip all the way through to the outputs with dc servos handling any dc offset. Which means there are no coupling caps in the signal path.

The Wima caps audoman58 is talking about, are just to bypass the electrolytic caps with (decoupling caps) and are fine for doing that. They are not coupling caps and have no music signal passing through them all.

Cheers George
 

One thjng I can tell you even if this upgrade foesnot come out until later in the year .time tables are never accurate by company projunctions.

I had my Gungnir multibit upgraded which also applies to the Yggsdrasil.
If you look on the boards they gave the average red wima caps nothing special 
My tech which builds set preamps and various upgrades replaced all 8 wima caps with the Amtrans from Japan which are night and day better.
These are a Copper foil which is the best type vs metalized paper 
And the synergistic black fuse a dramatic difference in depth of instruments 
Separation as well as much more dimentional. The Yggs has 12 capaciyors yo replace. I even asked Schiit if I sent in  would they put in these far superior caps 
No not even if I paid them, not even a better fuse. That is why 2 of my friends did there's first for $500  a no Brainer as much as the Multibit upgrade increases resolution, the cap upgrade is more to do with realistic of instrument tonally and depth. Give it a solid 100 hours. I would do it again in a heart beat it is that good .
If in new England .drop me an email to give it a listen.

The Yggy can have a direct coupled analog output and still have its SQ changed with replacing those WIMA caps.

R2R DACs requires a post anti-imaging filter to remove the oversampled garbage from intermodulating the signal. That filter would use quality caps in either shunt and/or NFB positions to perform this task. Technically, not in the signal path, but would still influence the SQ to some extent.  

I have an email of inquiry into Chris at Parts Connexion and may be trying this mod myself soon. 

The Yggs has at least 16 of the lesser wima caps vs the Amtrans which are a 
COPPER FOIL which is a night and day better cap then the Wima sprayed aluminum particles on paper . There also may be some surface mount  resistors that Chris-parts connecxion  mat find better.  For sure go for the 1.6 amp fast 
Synergistic Black fuse  and there may be other bits Chris can better
And gor sure add 2 Bybee quantum purifiers,,and input the Furutech Copper ,hold plated IEC plug with rf filter built in . You can take this to another level if you choose to .myself just did caps fuse,  Schiit doesn't want to add MQA option 
Which is a easy firmware upgrade .if I am willing to pay for the license and time less then an hour  on my unit well under I was told .I am emailing mqa and will confirm.  Several big labels will now be on board ,that is a very good sign. I will get back to you on cost $$.

I'll investigate the caps. 

MQA is a big no-go with the Yggy. 

Got a reply from Chris at Parts Connexion. He did not know about what mods audioman58 was talking about. Did not know the cap values needed and wanted a schematic from me to further the discussion.

Conclusion: I will not not be modding my Yggy per audioman58’s hallucinations.

Conclusion: I will not not be modding my Yggy per audioman58’s hallucinations.

 Same with this statement he made.
" There is 6 Wima caps per channel 12 in total. Without question in the signal path."

Cheers George 

I am only speaking what I know to be factual myself had the Gungnir multibit 
Upgraded and I got the idea from another guy locally that did thd Yggs .
You can't doubt whatever you wish the facts are thd facts.  Email Chris Johnson 
The tech ,owner of Parts connecxion he  will verify the Amtrans caps are Much better then the Average Wima caps. HALLUCINATIONS THEY ARE NOT.
All poly caps effect the signal path to some extent cumulative X12 . I have been modoing for over 15 years 
To knock something that works does not say much about your experience.

Chris can and will do your mods  you send the unit.I had Radu do the  soldering on these 221pf, and 331pf caps exactly the same size in the Yggs 12 vs 8 caps on main multi board.
I spoke with Chris before I bought the Amtrans Chris verified their Quality  vs the Wima.  I chose  local ELECTRONICS DESIGNER  Radu Tarta  to install my caps as well the Synergistic Black fuse. He will verify that. If any of you guys want to hear this upgraded dac
Email me I am in Massachusetts. 

Synergistic Black fuse.

There it is!!!!! 

Cheers George

I am way late to this game! I don't yet believe in fuses making a difference, but I have been wrong about cables, capacitors, etc., so I am not going to say that they can't, I just seriously question it. As for your by-pass caps, there is no way to argue that quieter DC doesn't improve sound in my experience, so if a capacitor is a better filter, it can absolutely improve the overall sound. It may not, better doesn't necessarily mean that a better filter capacitor is needed mind you, but there should be no doubt that if better filtration does provide quieter DC, then it is entirely possible that it can also improve the sound. Again, you can reach a point of diminishing returns,where the DC may already be so quiet that any further improvements may not even be audible. One point though, in a direct coupled circuit has a cap shorting to ground, you'll have no output as it will go to ground via the "shorted" cap. I understand what you were trying to say, but a cap "shorted" to ground is effectively a wire.