Jadis Defy can't sing with super high Fidelity PART 2


Why part 2?
Because she sings now, why?
Just arrived
Shugaung 12AX7T's from HK, dealer Douk audio,
WOWWW, unreal, IMHO no other 12AX7 comes even close to these Shugaung T's,. I mean this Defy in spite of the cheap chinese mock  Jadis 200 pre, the Defy has come to a  glorious resolution. 
I had no idea the front tubes were so so vital toa  sound ofa  tube amp.
I am using new Psvane's 12AU7 in the front, 4 12AX7T's just behind.
UNREAL. 



I will makea  YT vid today, and post it, and try to post a  link here.

https://www.amazon.com/Matched-Shuguang-12AX7-T-Premium-High-end/dp/B01EFYT84U
I put my bet on these Shugaung 12AX7T's in a  shootout with every NOS EU 12AX7, any and all ina  shootout,
in 5 seconds or LESS the Shugaung would blow the entire bunch of  Siemens, Tele, Amperex, Mullards, all with ONE SHOT, .
These Shu are the quickest , most accurate, gun shooter in the west. 
mozartfan
@ davey
well  your are correct,, the roll to a  150, although Jadis does list a  few amps which can accept the 150,, this Defy is ,, maybe cerca 2000, so not built fora  150,,my bad,, now i consult with my tech guy on any mods.
btw each tube has a  fuse,,so  a fuse will blow pre any damage to the  huge beefy trans.
@ reprince,,
I'm sure Jadis placed the finest parts made at that time in their amps, These M caps are designed , 2012, they add to the separation of fq's, boost clarity, I think there is more to be gained from the new cas, which is why i am going back to the Svetlana 6550's,,which vivatubes says are identical to the Svetlana 6550's which came with the amp. 
I sold those off last year for 250/NOS and bought  the new release for close to 500, not a  good move,,, I did not even hear the NOS,, just assumed that I loved the kt90 EI in the JOR so much, that I figured the kt90 was my tube sound. .. sold off the 90's at half price also, new tubes.
,,so yeah, davey is right,, i need to slow down rethink all  mods,, randy has been a  big help now on whicch mods to go with
Right now as i wait on 6550's to come in,, he is chaging all----maybe not the 4 big electrolytics,, can't recall if we are holding on those, as each is $125-- need to write him today,, see what we are going with. 
So all other smaller electrolytics are be chamed to  either Nichicon or F&T's, can't recall  which lab  we decided on. 
Randy changed the electrolytics in his Golden Tube  to Nichicon's and noted a  nice  sonic gain . 
 The power electrolytics are going on 20 yrs now, best to  change out. 
Thats all i am doing,, not  making any mods on the design of the amp, = post mods   will be a  Jadis amp. , same characteristics.
I plan to buy a  meter and Randy will show me how to bias.
Will post a  vid once everything is up N running. 

@mozartfan, A fuse will blow before your transformer gets damaged? (not necessarily!)-  the fact that you rolled in a KT150 which a) you couldn't get to bias and b) needs about 600+ volts on the rail..which your transformers were absolutely NOT designed to accommodate. You got lucky my friend, pure and simple...and the fact that the Jadis transformers are built like a tank...I strongly recommend that you get a professional tech's advice before doing something stupid like that again! 
Hey Davey
Yeah my tech guy jumped on me about making rash, , unreflective/not well resrached deciosions about rolling tubes,, Like swapping the 12au7's for the awesome looking E80's, =  The Defy nor the Lite pre (12at7) liked the E80 in the socket..
man that e80 such a beauty.

well those following my journey,,,its comming down to this.
The cayin SC6 Mark2, is not long off, 2 weeks order placed.
If that pre does not trump the Lite (Jadis clone) then I have to options
A) sell the Defy when a  jadis Intergrated comes avaliable
B) purchase a  new Jadis JPL pre at a  bank busting $10 Grand.
I am going to miss the neutrality of the Defy, and its power to deliver solid bass.
+ all the new M caps, + new electrolytics. +  pure copper terminals, speaker/connect posts, etc,,
Randy just called, he will keep the 88's in post new mods,, than later on we can roll to the Svetlana 6550's. 
..So hang in there for 
Part 3 < does the defy have the power to sing likea  Italian tenor?>
stay tuned.
p
new orleans


Here is my latest YT  upload,, sorry for the carrpy mic system, which does no justice to the  wonderous neutrality and dynamics of the SEAS Thor speakers.
Voice is nearly life like (will be superior once added a  new preamp + new xovers)
The thing i have been after these 40+ yrs  in all things audio is ,,Neutrality~dynamics~~ and most of all ~~~Non Fatiguing~~
I'd say the Thor's , ona  scale of 1- 100, receive a 100  score. Bass 100, mids 100, high fq's 100. 
https://www.youtube.com/watch?v=t_Y9WRTjl9c
Ok here is m latest vid showing the mods completed in the Defy. 
Its hard to say how much sonic gaisn have been made, not until i get a  superior preamp. 
But I can say we installed caron Film resistors as last mod,,and i had a  gut feeling some of the fidelity that was present  with the original metal resistors ,,was ~~deleted~~~ so I called andy, and suggested the TAKMAN metal resistors which we ordered and had sitting in his shop, to replace the carbon film.
and sure enough the amp 's sound was improved,,, Caron film tends to smooth out, but whats that? = loss of dynamics. 
IMHO Metal resistors are superior to carbon..so when I get the cayin SC6 which Cayin boasts has Takman carbon res,,its very liekly i will swap those out for Takman Metal. I realize what cayin went with Takman carbon,, as audiophiles perfera  smooth, **warm** voicing,, whereas I much perfer  a  dynamic sound,,which may strike some as analytical =*cold*,,but thats my preference. No doubt thats why cayin chose carbon over the metal. 
No big deal, the cayin SC6 has point to point wiring, so  the  mod should be a  breeze to make.

https://www.youtube.com/watch?v=RpVCbHX6jWU&feature=youtu.be