SET Shootout China VS The USA


2A3 SET from china arrives any day now.

The tech who loaned me his UX250 (aka 50 Tube) amp, with a  12AU7 in front + a  6BH7 (??) , has incredible pure Cobalt out trans. ($1k+ each back in 2000, now no longer in production). . he will help me set up the  2A3. 

Has a  AX+AU my 2 fav front tubes anda   quad of 2A3's. 

My speakers are pure neutrality, no coloration, no distortion,. 

So whatever amp/ source you plug in, will register the nuances inherent in the circuit.

Will be very interesting. 

USA has pure cobalt out trans which gives the edge in power, but the china 2A3 has a 2 tubes per channel.

Gonna be interesting and will post a  YT upload with comments,

AFTER TESTING IS COMPLETEED.

Hand on to your horses at the OK Corral. 

Grab a  beer at the saloon, 

sundown shootout at the edge of town. 

 

mozartfan

You shouldnt make decisions, audio or political, based on youtube videos. Also, just because your tech can fix something or tell you how it works doesnt mean he has earned the right to hear for you too. Buy what you want to buy....

@laoman Then go find a forum like this in the PRC. Where you can speak your mind for the most part and not have to worry about having your front door kicked in.

Why are you supporting China's economy?" Be aware that not all posters on this site hail from the US. Some of us would rather support Chinese technology rather than US technology for various reasons including political,

Interesting comment from someone who clearly has no idea of the political landscape, eh Jerry?

because your tech can fix something or tell you how it works doesnt mean he has earned the right to hear for you too ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

Well although he is a savant in all things electronics/amps/TV’s etc, does not mean his opinions are not *un-biased*, Pun intended. At times he is spot on but can lean a bit to his strong opinions. You know a better OP title could have been KT Series circuits (includes the EL’s) vs Single Ended Triode ///DHT single tube vs DHT PP AS of a few weeks ago, i had no idea DHT PP circuit even existed, to my surprise and de-light. In my very limited exp of these 3 designs, I tend to favor DHT/PP as 1st choice. What we see offered on the market by heaps and gobs are the KT PP series. (KT in a SET design is rarely offered and not of my concern) KT88’s are by far the most offered, most popular, most purchased. Now why is this? Answer:: Speakers. Low sens/xover types require a KT PP circuit that delivers some solid 30++ watts of power.

The USA audiophiles are  so devoted if not  blind eyed, about their xover type speakers, including ZU’s, Tannoys, and such, 

they cant see the forest for the trees,

Whereas the asian, especially the china audiophile almost to the last man, chooses high efficient/higher sens FR type speakers, Thus SET ’s are no doubt purchased more frequently. As I see (hear ) it, seems to me the asian SET/DHT/ with Full range speakers are more advanced in acheiving higher fidelity vs the USA audiophile determined to stay firmly and may i say, stubbornly, planted with both feet , and may I say, rock solid cemented in his stance, to hold on to his dear life , the big PP power amplifiers and the partnered speakers that pairs well with his KT amp, the xover.low sens (aka low efficient read IN-Efficient read IN-effective in midrange) speakers.

So Be IT. each his own I guess. .

I’ll follow the asians on the path to high-er fidelity.

@mozartfan 

I'd say more specifically give credit to the Japanese audiophile/music lover community for reviving the interest and admiration for SET/low power tube amplifiers driving horns-high efficiency speakers. They bought a ton of discarded and ignored old Western Electric old movie theater audio equipment. 

 

Once transistor power became common in the 1960s (More power than tubes for far less money). Tube components were viewed as archaic and useless. It was Jean Hiraga who brought the low power SET/High efficiency speakers movement from Japan to Western society in the 1970s.

The rest as they say is history. Dennis Had (Founder of Cary Audio) was an early American SET manufacturer. Don Garber (Fi Audio) was another early American convert who built SET amplifiers. 

Charles 

I’m glad I stocked up on 307A’s when they were relatively inexpensive. It was inevitable that they were going to be ’discovered’’ at some time. When used correctly they sound particularly fine into special edition Magnequest FS-030’s using the 4 ohm tap. The bottom end is quite authoritative for a SET.