DK Design VS.1 Reference mkII - Optimization

Try HIFI Tuning Fuses! Four inside you have to replace, I
did and got very good results! You can see more into the
soundstage now. Highs are better also, but this is not the
shot in the arm you maybe looking for. You need good cables
with this amp! The Power cord plays the major role here,and you can't use bright sounding cables at all here. I had planed on getting a new amp up to this point. Not anymore! I'm going to try the fuses with my Black Cube's power supply next. They did great things for my Kora tube DAC.

CHANGE THE CAPS WITH HIGH QUALITY LIKE I DID ON MINE I REPLACE THOSE BIG CAPS ON TUBE BOARD WITH NICHICON GOLD SAME VALUE AND AURICAP 3.0 MF IT TRANSFORM IN THE NEXT LEVEL.

I have changed the CAPS in my DK amp also, to Auricaps 3.0!
they sound a hell of a lot better. I my mind the highend
fuses working with the CAP upgrade takes the amp to even
higher level. I don't get the un-even sound anymore. Once
the amp is hot and ready to run, she runs! I have noted that the highs sound a lot better now after the change. They still sound a bit distance. The total job cost me about $100.00. $40.00 for the caps, $60.00 for have them
put on the boards. Beats buying a new amp!

I have changed all the RCA connection and the binding posts on the amp. Added WBT's, this was also a great upgrade to the amp. The sound is much clearer now. The highs have a little air now.

Hope this tread is still alive:
To Isslewis:Yes, changing the fuses to HI-FI Tuning, is great just. But if You only changed 4, You surely are missing the one under the bottom cover of the amp. It is hidden under a plastic cover too.. And this one makes a big difference, I missed it myself , that’s why I know...

My Tweaks:
I have fittet a Vincent powercord to my MK II with great result. Clears up the soundstage in a nice way. It seems to be sensitive to powercords.
I also use a “symmetry box” on the in my powerline and it makes a lot of difference. It works well with everything I tried it on. But the company that made them has closed, I am sad to say.
I have also changed the big and heavy speaker binding posts to a banana type. I have found some with very little mass. And I use bullet plugs for my rca. Sounds more natural than the types with lots of metal.
The tubes are Siemens cca (gold pins), think they are the best sounding tubes for this amp. With lots of air In the high notes.
The amp is standing on Solid-Tech: IsoClear feet from Sweden. They have a lot of small springs and keep the amp “floating”. Even thou it stands on a very heavy Audiomagic Hepta rack, they make a lot of difference.
Another thing to try out, is fitting short-wired rca plugs to the unused rca`s . Only the input ones of cause…!!! I have used WBT ones, and it makes a big difference in my set-up.. The soundstage becomes much better defined. Some sound recordings suddenly sound a bit narrow, and others sound huge, like they are supposed to, I guess.
From day one it has had a little hissing sound from the speakers, but don’t` know how to cure it, Maybe somebody else knows this?
I am very pleased with this amp and is still looking for more tweaks and upgrades. But sending it to U.S. for major upgrades is not an option because of the shipping costs.