SET Shootout China VS The USA

@larryi Funny you mention hyper realistic with the 2a3. When I was running 2a3 monoblocks with Omegas I often thought about this particular characteristic of internal luminescence. Mids had the sense of being lit up from within, very unusual, never heard this prior or since. ~~~~~~~~~~~~~~~~~~~~~

 

WOW now thats a amplifier. 2A3 monos. Unreal.

 

Agree, the KT series ain’t no slouch , as i’m listening to sym via the 2A3, the KT88’s deliver a similiar result.

We are only talking slight shades of nuances here. But over all, for my preference in soundstage, I prefer the 2A3 PP with a FR speaker. Low watt amp always works superior with FR vs a KT PP. Its my personal preference , maybe not yours. But as you guys know ,

I’m done with xover low sens speakers.

And I know darn well none of you are about to follow my lead.

FR are superior. For so so many reasons. call me Philistine all you want.

I am The Iconoclast.

 

and yes I did correct Yaqin  sp in the YT uploads. 

@mozartfan Just so you know, that 5% figure is for the tube alone; it does not include the rest of the circuit of an SET. The distortion of that at full power is more like 10%. If you really want to hear what almost any SET does, you need a speaker that makes no demands of the amp over about 20% of full power, so as to avoid higher ordered harmonic generation. Of that means a speaker that is more efficient than any 'full range' speaker can be- for a 2A3 no if ands or buts you need horns.

At least if you want to produce realistic sound pressure.

@ Atmasphere

 

Yes my tech Richard, just wrote  to say 5% as vol gain goes up more distortion,, that 5% goes down as vol gain goes down.

I listen at ridiculously low SPL levels, so for me this 5% is no big deal.

well yes at full blast evena KT88 will show distortion.

My tech and Charles among others wish  that I retarct some of my strong opinions, as if to say 

**the 2A3 PP  is just 1 of many options, 1 circuit is not superior to any other..**

BALONEY. Just a simple one  size fits all platitude.

The 2A3 PP is superior to any and all KT circuits.

I would bet outshoots Jadis' new super KT170  Crown Jewel.

 

Yes I understand as a  FR sens goes up, better response froma  low powered SET or low powered PP *SET type tube* 300B/2A3.

But as you know the higher in sens you go up ina  FR, lower the bass response, = too forward a  midrange.

 

95db sens ina FR is my very limit.

I would not buy a  96db sesn driver, as there is no way I can intergrate a  W6 FR.

Just 1 db makes all the difference. I got very lucky on the davidLouis

VX8 95db

VX6 93db sens

made it by 1 db on both

If the VX6 was 94db, it  might cause trouble.

Finally everything is falling into place. 

Hundreds of hours research.

Lots of  cash, mistakes, errors.

Luck has finally tured in my favor.

About to upload yet another Yaqin vid/

Might stir up the honets nest, so let me put my protective gear on....

 

 

@MF... What's "dispication"? Can't seem to find that one in my audiophile thesaurus 😵

**the 2A3 PP  is just 1 of many options, 1 circuit is not superior to any other..**

BALONEY. Just a simple one  size fits all platitude.

The 2A3 PP is superior to any and all KT circuits.

@mozartfan 

If you run a KT88 UltraLinear, using an output transformer with the UL taps set up properly, you can get the same or better linearity out of that circuit that you get from a 2A3. If the taps aren't right neither will be the linearity so I am stressing that point. If the driver and voltage amplifier are then fully differential, the distortion without feedback will be dramatically lower than the 2A3 amp at nearly any power level.

You'll wind up with a more transparent, more musical distortion signature and therefore a more transparent, more musical amp with a lot more power.

Although I don't know of such an amp there may well be one out there (most I know of use textbook circuits from the 1950s); having been a manufacturer for over 47 years I'm really hesitant to make a blanket statement such as yours in the quote above- in a nutshell, its blatantly false.