Let me share my most recent experiences
Everyone can decide for himself
This is only my opinion, my 2 cents.
My Defy7 was being upgarded by Ricahrd Gray, so as is his usual, he loans out his spare amps.
1st up, his <<baby Gray>>a heavily modded Dynaco ST70 redesigned by Richard, he sells alot of these amps.
Really did not expect much from the lil Gray,, but honestly close to the Defy.
Next he loaned me his Allan Organ mono blocks with KT120's, again, sound close to the Dynaco and Allan.s all 3 amps had close to same sonics, /sound stage etc.
kt88=EL34 = KT120, to me a tube is a tube. just shades of difference twix the 3 tubes.
Which is how i base my opinion a push pull = a push pull.
SET's are another amp.
I could live with any of the 3 amps, but prefer the Defy for its aesthetics and does have slightly superior sonics, = read <<nuances> Nothing more.
My Jadis DPL preamp, sounds very close to my sold chinese clone Jadis 12AT7 preamp, hardly tell them apart.
The cayin cd player sounds very close but no cigar to the Shanling, the Shanling onlya nuance over the pricey Jadis DAC.
Conclusion,
Most quality design push pull tube amps will exhibit very close ambience to each other.
Caveat here, looking at a baby Gray, looks ugly inside and very simple layout vs Defy 7's very complex layout. Yet both sound similiar.
Jadis DAC has some very nice components inside vs the Made In China looking Shanling, Yet both sound very close in sonics.
Now we come to speakers.
There is not 1 box type xover design, traditional 2 or 3 way that competes with a FR/TIHorn
Here its a matter of a completely different experience.
This is what i am attempting to get across in this topic, Agree, disagree, fine. I just wanted to document my experience as a google login reference for future audiophiles research.
They can do what they wish with my experience.
Caveats here.
Gold Lion KT88's soundeda bit too warm for my taste, went with Svetlana, next wioll be EH kt88's.
Might be a dif, not sure.
Richard says they are the same tube, made in same plant, Can't say for sure if he is right.
Next up caps, When the other tech geek removed the big blue Philips caps and installed Nichicon's, some of the Jadis magic went away also, WE put them back.
When we installed 12 .47 Mundorf SESGO caps, i noted more bass,
Again navships wiring throughout system all adds up to nice nuances.
Bottom line is the biggest most significant gain in my system was going to a FR vs the old traditional xover low efficiency design.
IMHO tubes + FR are a match made in heaven.
Richard was telling me often, <<YOu have the wrong speakers>> But not understanding what he was getting at, He may not have even mentioned FR. The FR discovery was all on my own research.
I would look over DL offerings on ebay for hours, But not sure what exactly FR was all about.
Took the step and glad i did.
This is why i arrived at the hypothesis <,speakers are everything in a audio system>>
All else are just nuances, tweaks.
I you have the wrong speakers, ya ain't got nothing.
Hope that clarifies.