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

As you know these discussiions around tubes can get slippery. Not justa few weeks ago,,**SET, yeah #1..**

Now, cant say that. I actually by mistake or by lucky chance,,hit on this 2A3 PP circuit. Will the mesh elimiante some of the ever so slight harshness/in some mids fq’s??? Late summer we will know..

In my opinion I just think that you rush to conclusions prematurely. You are doing some interesting things and expanding your experience with different types of tubes and amplifiers.

Just take time to absorb new discoveries and let things sink in, no need to declare absolutes at this stage (Or perhaps any subsequent stage). You note that discussions about tubes can get slippery. A lot of truth there.

You can have two 2A3 amplifiers, however they differ in power supply quality, output transformers, type of coupling capacitors and internal wiring. Despite both utilizing the same 2A3 tubes the two amplifiers can/will sound quite different. You have to account for the numerous variables involved. Continue to explore as you’re definitely learning as you go.

Charles

@mozartfan One of your main problems here is you're paying attention to tube type and not much else. Look at Charles list above especially output transformers which really make or break a tube amp's quality. Parts matter it's why generally tube amps, SET amps especially are more expensive. You should let your tech go over your new amp he obviously builds amps and knows parts quality, I suspect your Yaquins could be a good platform for some parts mods that could boost SQ significantly.

@jond 

 

Yeah well my tech really does not wish to get into any **mods**, 

He figures let the amp **do its thing**.

He last words were (in spite knowing well the trans were Z11), *who knows you might like it..** 

And I do,

I actually give the edge to a  2A3 PP vs  the much more common PP the KT in all its variatiosn, EL34, 88,120,150.

IMHO this 2A3 wins out over the KT series.

I try to explain in the video below.

The Diana Krall cd is the ultimate test cd for any and all speakers. 

If your speaker can make it all they way through Diana 's cd, then you have a  winning speaker.

 

As I try to explain in this video.

should be uploaded by now.....

 

@mozartfan once again, your absolute conclusions are premature and your sample size is limited. It doesn’t mean you won’t enjoy it, it just means that your conclusions lack credibility. For instance, I have an el34 based amplifier in my closet which would likely change your opinion about absolute tube type superiority.

 

At any rate, I will leave you alone now. It is abundantly clear you aren’t looking for opinions or advice, you are just looking for an audience. Best.