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DNA Stratus 2A3 amplifier - first impressions - Page 95

post #1411 of 2160
Quote:
Originally Posted by gavtorn View Post
 

Brown - the GEC looks almost the same as the one you posted a pic of in your thread, a bit scratchy and spotty.  The Osram looks cleaner - however the base is a little loose and there's a rattle when the tube is moved.  Doesn't seem to effect sq however.

 

the one i posted isn't scratchy and spotty lol, its actually marbled brown base, really pretty in person

 

its MWT labeled.

 

i also have a GEC labeled one thats a black base


Edited by Dubstep Girl - 1/11/14 at 10:03pm
post #1412 of 2160
Quote:
Originally Posted by Dubstep Girl View Post
 

 

the one i posted isn't scratchy and spotty lol, its actually marbled brown base, really pretty in person

 

its MWT labeled.

 

i also have a GEC labeled one thats a black base

it looks the same as this (including the sticker) - didn't realise it was meant to be a marbled finish, thought it was just old and scratched up.. :)  The osram is the same darker brown color but solid.  

 

Do the GEC and MWT sound the same?

post #1413 of 2160
Quote:
Originally Posted by Dubstep Girl View Post
 

 

the one i posted isn't scratchy and spotty lol, its actually marbled brown base, really pretty in person

 

its MWT labeled.

 

i also have a GEC labeled one thats a black base

LOL - tubes are people too!

post #1414 of 2160
Quote:
Originally Posted by gavtorn View Post
 

it looks the same as this (including the sticker) - didn't realise it was meant to be a marbled finish, thought it was just old and scratched up.. :)  The osram is the same darker brown color but solid.  

 

Do the GEC and MWT sound the same?

 

they sounded the same to me, didn't listen to them long enough since the GEC one was a spare i bought.

post #1415 of 2160
Thread Starter 

Well, fellow Stratus owners,

 

I am sorry to report that the WR2A3s do indeed have a noise problem.

 

I enjoyed listening with their extraordinarily rich presence and spot-on tonal realism and dynamics for about 150 hrs. Then I began hearing a low-level spit-and-sizzle noise, first one, then the other. Several times it disappeared after I re-seated the tubes in the sockets, and cleaning the pins with De-Oxit helped, too. But, soon the noise came back in both tubes, and I can't get rid of it.

 

Bummer.

post #1416 of 2160

Try heating up the solder inside the pins running a very hot soldering iron up and down on them.

 

Good Luck

post #1417 of 2160
Quote:
Originally Posted by budx3385 View Post
 

Well, fellow Stratus owners,

 

I am sorry to report that the WR2A3s do indeed have a noise problem.

 

I enjoyed listening with their extraordinarily rich presence and spot-on tonal realism and dynamics for about 150 hrs. Then I began hearing a low-level spit-and-sizzle noise, first one, then the other. Several times it disappeared after I re-seated the tubes in the sockets, and cleaning the pins with De-Oxit helped, too. But, soon the noise came back in both tubes, and I can't get rid of it.

 

Bummer.


Can't you return them to PCX?

post #1418 of 2160

sorry to hear that bud, everyone appreciates your feedback though.  I'm in the middle of gathering 2a3 tubes myself and sticking with the NOS stuff for now (RCA/Tung Sol, Sylvania, Ken-rads) from recommendations here.  Only pair of modern production I purchased was Shuguang Natural sounds and those seem to have good feedback here.....sounds like Psvane might be a bit of a lottery.

post #1419 of 2160

This is the full write up of my bad experience with JJTUBES.eu when I bought a pair faulty JJ 2A3-40W, buyer beware. 

 

http://www.head-fi.org/t/700641/beware-of-jjtubes-eu-defective-jj-2a3-40w-is-your-amps-fault-even-if-it-works-fine-with-other-2a3-tubes

 

 

budx3385 - Hopefully PCX will sort it out for you and the replacement pair will be much better, fingers crossed.


Edited by SleepyOne - 1/17/14 at 12:05am
post #1420 of 2160

I was wondering do you guys know if the DNA needs a balanced DAC? I know the GSX does otherwise you only get the benefit of half the circuit, is it the same for the DNA? It could be a deciding factor for me. 

 

Sorry if this question has been asked a million times. :popcorn:

post #1421 of 2160
Quote:
Originally Posted by magiccabbage View Post
 

I was wondering do you guys know if the DNA needs a balanced DAC? I know the GSX does otherwise you only get the benefit of half the circuit, is it the same for the DNA? It could be a deciding factor for me. 

 

Sorry if this question has been asked a million times. :popcorn:

 

The Stratus is a single ended amplifier with only unbalanced RCA inputs. The balanced output is derived in the center tapped output transformers.

post #1422 of 2160
Quote:
Originally Posted by Donald North View Post
 

 

The Stratus is a single ended amplifier with only unbalanced RCA inputs. The balanced output is derived in the center tapped output transformers.

Thanks Donald. I keep moving between DNA and GSX and not being able to decide but i think the DNA is pulling ahead now, I thought i was gonna have to sell my T1/WA2 to be able to afford a DAc and the GSX but now that i don't have to upgrade the DAC to a balanced one i think i will go with the DNA. I will get a better DAC later on

 

It will be nice having the DNA and the Woo side by side. :D

post #1423 of 2160
Quote:
Originally Posted by magiccabbage View Post

Thanks Donald. I keep moving between DNA and GSX and not being able to decide but i think the DNA is pulling ahead now, I thought i was gonna have to sell my T1/WA2 to be able to afford a DAc and the GSX but now that i don't have to upgrade the DAC to a balanced one i think i will go with the DNA. I will get a better DAC later on

It will be nice having the DNA and the Woo side by side. biggrin.gif
You're facing the same predicament as me. I am still deciding between the GS-X Mk2 and the Stratus. I feel that the Stratus offers more variability in sound where as the GS-X offers more versatility in connections. If only I could try them side by side.
post #1424 of 2160

I had WA2 and GSX MK2 for a short while :D

 

Stratus and GSX would be nice though

post #1425 of 2160
Quote:
Originally Posted by magiccabbage View Post
 

Thanks Donald. I keep moving between DNA and GSX and not being able to decide but i think the DNA is pulling ahead now, I thought i was gonna have to sell my T1/WA2 to be able to afford a DAc and the GSX but now that i don't have to upgrade the DAC to a balanced one i think i will go with the DNA. I will get a better DAC later on

 

It will be nice having the DNA and the Woo side by side. :D

Just go to the Stratus:biggrin:

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