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jk_richards

Responses from jk_richards

Modding the PS Audio Directstream DAC MK1 and MK2
Quote: gme109 48 posts 05-17-2024 at 10:13am  Are there any reviews from someone who upgraded their DSD MkI DAC from the original APS transformers and VOCM  mods to the new Signature series plus?   Thought we would post some o... 
JK Richards PS Audio DSD MKI transformer upgrade
Only upgrades are available at this time.  Both the Signature Series and Signature Series PLUS upgrades and Special upgrade pricing for current customers. If you purchased an upgrade you may be eligible for the Signature Series PLUS Upgrade for VI... 
Modding the PS Audio Directstream DAC MK1 and MK2
No.  We made the R2 to correct the DC offset issue the MK1's have.  
Modding the PS Audio Directstream DAC MK1 and MK2
We have been asked many times, When did we change over to the new Rev.2 transformers? Any transformer purchase before December 20/2023 are the older original transformers. We finalized the new Rev2 transformers on that date. These new R2 transfo... 
Modding the PS Audio Directstream DAC MK1 and MK2
Just a heads up... We are only able to do 1 or 2 Signature Series PLUS upgrades per week so first come first serve or until we sell out of parts.    
Modding the PS Audio Directstream DAC MK1 and MK2
We have received many inquires about making the MK1 upgrade even better however some feel that we left them out with the older upgrade. APS has decided to give our past customers a big discount on the Signature Series PLUS upgrade. Anyone who pu... 
Modding the PS Audio Directstream DAC MK1 and MK2
I want to clear up some info on the Signature Series PLUS DAC. We have received many inquiries about how much it would cost to upgrade a standard Vocm mod / APS R1 transformer DAC. The standard Vocm mod we did from the beginning and is still ava... 
Opinions on PS Audio Direct Stream DAC (Mk 1)
Quote from magon OP "I sensed it as too bright. For instance, in chamber music, the instruments in the upper registers tended to stand out much more than the lower instruments. Or in a piece by Chopin, the pianist’s right hand dominated the textu... 
Modding the PS Audio Directstream DAC MK1 and MK2
  Use a Triad VPT12-4170..  Should also add a flux band shield.   https://www.mouser.com/ProductDetail/Triad-Magnetics/VPT12-4170?qs=wkKrz7WmEgPxHMYAWLcN5A%3D%3D OR https://www.digikey.com/en/products/detail/triad-magnetics/VPT12-4170/2090067... 
Modding the PS Audio Directstream DAC MK1 and MK2
Yes With the Signature Series PLUS it is now much easier to hear the difference. We feel it sounds much better and more focused. We install Snowmass V1 on all our Signature Series DAC’s. We feel it is a much better match with our upgrades.  
Modding the PS Audio Directstream DAC MK1 and MK2
Discovered last week that PS Audio has revised both boards in the MK2. The analog board now has grounding tabs like the digital board. Also they neglected to remove the powder coating from them contact areas on the chassis making them grounding t... 
Modding the PS Audio Directstream DAC MK1 and MK2
My scope showing how clean the stock power supply is. The old FFT posted above is using the USB input. That is what causing the noise shown (ground loop). Not the power supply. Also there are at least two discrete filter / regulators circuits afte... 
Modding the PS Audio Directstream DAC MK1 and MK2
Yes. These are very new. More to come later as more are used. A panel of listeners here all agreed that the new Signature Series PLUS tops all the DAC’s we have here in a blind A/B comparison. DAC’s we have here. 1- MK1 Signature Series, 1-Mk1 S... 
Modding the PS Audio Directstream DAC MK1 and MK2
Ignorance is bliss. Re-posting someone else old data. This is from years ago with a stock unit. Guess you will never know what you are missing.  
Modding the PS Audio Directstream DAC MK1 and MK2
Anton, Antony_s0s Please get your facts straight. We don’t just do a simple Vocm mod like the weird “sandwich conglomeration you did. Who would even consider buying anything done that way? What a mess. We professionally change and add many other...