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

I have to really laugh at this thread. Here we have the OP stating that in his Jadis amp, he feels that the new KT150 tubes are a 'flop design' and that they are murky and mushy! Hello, can you say amp/tube mismatch!!!
Since the OP's amps were not designed to work with KT150's, I think his opinion of how these tubes sound is irrelevant. Only thing the OP should consider is how lucky he is that his amp didn't go up in smoke when he rolled in the wrong tubes, LOL. Oh, now I see he tells us that the amp has one channel out...seriously what a joke! 

Facts are
1) had not consulted with tech guy
2) Jadis no where says , can not use 150 in Defy
3) had no idea Jadis did not employ a  separate bias screw for each tube
Had  I consulted with randy Cohen,,,I am sure his research would have advised against using the 150,,,Randy kept calling, this is not the tube for this amp,, I had bought the tubes, unaqware of these isssues, = too late to return.
My loss of $400.
anyway.. have perfectly matcherd 6550's comming in 2 weeks from vivatubes. 
Jadis for some odd reason , did not employ a separate bias for each tube.
**Aesthetically it does not look beautifull  tom placea  separate bias screw on top of chassis.** End quote of Jadis engineers.
Well Cayin figured, screw aesthetics,,, its practical and intelligent to placea  bias screw on top of chassis, so owners can decide on which tubes they want,,and all do not absoluetly have to be perfectly matched..,. Which is why i recommend Cayin over Jdais. Cayin is the superior amp. Jadis is 2nd place, by a  mile.
So I am having most electrolytics changed out,,, not sure if Randy talked me into changing the 4 big electros,, have to call him today...Its about 20 electros, not counting the 4 big ones...anyway,,,mods are in proress and hoping for better things  to come.. Have to get over the big loss of the 150's, 
I would never bea  fan of 150's,,  neither 120's. Its a  shootout of kt88 and 6550 for me. 
They both look exactly same construction, The 88's i have are chinese, the 6550's, are russian. so basically its a  shootout between china and  russia. 
My guess  is yhe russian will offer a  sweeter mid range, but missing a  bit of bass puch the chinese 88 can boast.. 
Superior highs will be awarded to the russian 6550.
As I say, I bought the used amp, in 2008, had Svetlanan NOS 6550's, sold those off for $400,,,not some 12 yrs later rebuying at $450,,Sellers page mentions these 6550's are identical to the older 6550's, 
which i believe is the truth. 

Cayin is a superior amp to Jadis.

@mozartfan, as long as you are going to all the effort, you want want to add the Shuguang western electric KT88 plus to your tube list. I have tried just about every 6550 and KT88 made including NOS, and the new Shuguang is now my fav 6550/KT88 tube.
best

@mozartfan So, in your not so humble opinion..Cayin is superior to Jadis and KT88’s are superior to KT`150’s. Even though you rolled into your Jadis amp the wrong tubes( the KT150's)...and were lucky ( probably due to the extreme build quality) that your amp didn’t go up in smoke! IMHO, you sir- are one clueless hobbyist!

I haven't read the whole thread, but my recollection is that, unlike the old generation Jadis mono amps (JA30, 80 and 200), the original Defy 7 was not an autobiasing amp and could only use the 6550 tubes.  To use other tube types in it, you (or, if like me you're not technically inclined, a good tech) would have to go inside the unit to set the proper bias, not an easy job.  So any shootout of tubes will, in my view, not be particularly reliable, and could in fact damage the amplifier. I would caution against it. 

Also, from a quick read it looks like you're changing or looking at changing the internal capacitors, etc. in the amplifier.  You should keep in mind that by doing this you are changing the sound from the Jadis house sound.  You may find you like the new sound better, it may be a more "accurate" amplifier, but please don't call it a Jadis anymore.  I've had friends who got modded Jadis amps and had those mods undone because the Jadis house sound they wanted was lost.  Jadis may not have used the most expensive or transparent components in their amplifiers, but the components were chosen in part because they gave the designers the sound they wanted (and I'm sure cost had something to do with it).  If you change that sound and don't like it, please don't blame Jadis.