Atmasphere mp1 mk3.3 with phono


Looking for feedback on any members who did do the upgrades on this preamp.  Looking to improve the Phono stage and linestage, whether an upgrade on resistors would be the best for this preamp.   
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according to the manufacture they stated JJ for the preamp section (6sn7) and for the phono section they recommend the Shugan from China.  Anyone with accurate info.  let me know? 
Spoke with Ralph, he wants $2400 for both the preamp section and phono with caddock upgrades.  I think that just too steep for Caddock resistors!  
It's not too steep when you consider those resistors are not your run of the mill Caddock. They are manufactured to Ralph's specifications for optimal performance in the preamplifier. Fiven what people pay for an MP-1 to begin with what's another $2400.
Thank you, I know Ralph doesn't recommend NOS for the 12AT7 phono sections and he uses Shuguang as the stock tube which BTW is excellent.Fort the preamp he supplies Shuguang brown base which are good, I have NOS Sylvanias 6SN7GTBs on mine and found it to be an apparent improvement. I mixed the stock tubes with 2x CV181-Z, Shuguang Black Treasures and did not like the results, on my previous MP-3 these same tubes were very good but the MP-3 needs only 2 and the MP-1 6 of these.
according to the manufacture they stated JJ for the preamp section (6sn7) and for the phono section they recommend the Shugan from China.  Anyone with accurate info.
This is correct. With any high performance product using tubes, the tubes have to be hand-picked. NOS 12AT7s that are quiet enough to work in a phono section capable of working with LOMC cartridges disappeared long ago. I'm not saying you can't find some, but they are very hard to find these days. So new tubes have to be used and the Chinese 12AT7 has the lowest rejection rate.
Spoke with Ralph, he wants $2400 for both the preamp section and phono with caddock upgrades.  I think that just too steep for Caddock resistors! 
@zipost , @clio09  is correct, the Caddock resistors we use are not stocked by Caddock and have to be built per custom order. They are pricey! But they are also the best we've heard, and one of the best performing resistors you can buy. Vishay now owns Caddock, but has wisely chosen not to mess with them in any way, since Vishay has never made anything with their name on it that performs as well.