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jkrichards

Responses from jkrichards

Modding the PS Audio Directstream DAC MK1 and MK2
 
Modding the PS Audio Directstream DAC MK1 and MK2
Here is the data on the 298D  
Modding the PS Audio Directstream DAC MK1 and MK2
BTW just so everyone understands the 298D series is not an electrolytic cap.  It's the new Vishay Solid Tantalum Chip Capacitors MICROTAN® We use these as they are the largest value available that will fit in the 0805 space and has a low ESR, and... 
Modding the PS Audio Directstream DAC MK1 and MK2
QUOTE: "You could be right if you weren’t wrong. I have a dedicated streamer."   I believe you told us you are using a Bridge II board. QUOTE: "And as I've told it before (I think, I did on PS Audio forum), with a dedicated PSU for analog boa... 
Modding the PS Audio Directstream DAC MK1 and MK2
I think your Bridge II card is flawing your listening. When we did testing, the Bridge card totally trashed the sound quality no matter what mods were done. I would not recommend using the Bridge card as one could never get the great sound these D... 
Modding the PS Audio Directstream DAC MK1 and MK2
The internal power supply is fine in the unit as there are many up stream regulators and filters. It’s not necessary to use an external supply for this reason however using an external supply will remove some heat from inside the DAC. Also that b... 
Modding the PS Audio Directstream DAC MK1 and MK2
The XS4400 is not even in the same league as the custom designed nickel transformers.  Some of the "cheap" power supplies are designed better than some the the over priced supplies.  We know because we measure, test and sometimes modify them. Our... 
Modding the PS Audio Directstream DAC MK1 and MK2
We feel the modded MK 1 with Vocm mod and nickel transformers sounds better than the stock ML2. The MK2 with nickel transformers sounds just slightly better. From 1-100: MK2 99 MK1 98    
Modding the PS Audio Directstream DAC MK1 and MK2
I did the Vocm mod for a friend several months ago.  He liked it however he thought his Holo Audio Spring 3 DAC sounded better. a couple months later I upgraded his Edcor XS4400 to our Nickel transformers.  He loves the MK1 now better than the Sp... 
Modding the PS Audio Directstream DAC MK1 and MK2
Much lower distortion. The nickel is just part of the equation in making a great transparent audio transformer.  We design these specifically for the MK1 or the MK2.  They are not interchangeable.    
Modding the PS Audio Directstream DAC MK1 and MK2
No schematics on the MK2. Good to know you found a good replacement power transformer. Thanks for the info.  
Modding the PS Audio Directstream DAC MK1 and MK2
There is nothing to worry about however there is 4 heat sinks, two of which are not being used or at least not very much (without the Bridge installed) and do not get hot.  By installing a heat spreading material between these heat sinks distribut... 
Modding the PS Audio Directstream DAC MK1 and MK2
HERE:  
Modding the PS Audio Directstream DAC MK1 and MK2
You will be very happy.   
Modding the PS Audio Directstream DAC MK1 and MK2
First pair of APS audio nickel transformers for the NEW Directstream DAC MK2.