DNA Stratus 2A3 amplifier - first impressions
Dec 12, 2018 at 4:19 PM Post #3,721 of 4,456
Hi all,

Here is my complete list of tubes available for sale. Please PM me if you are interested.

Power tubes

Sophia Carbon Princess 300B
Sophia mesh plate 2a3

Rectifiers (all are cryo'ed except for EML)

WE422a - SOLD
(2) WE274b
(1) unmarked WE274b
EML 5U4G

6n1p

Pearl Reflektor gold grade
(6) box plates - very rare and high quality (all are cryo'ed)
Others of varying type and quality (some are cryo'ed)
 
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Dec 13, 2018 at 10:39 AM Post #3,722 of 4,456
For those interested in more information on Psvane's new Acme series there is a thread here: https://www.whatsbestforum.com/threads/psvane-acme-series-new-flagship-series.26395/

Information is very scarce at this time and if anyone knows more I hope they would post. It looks like they are already available for purchase in China. Grant Fidelity moved their date from the 10th to tomorrow, the 15th. They will be re-testing before shipping.
 
Dec 16, 2018 at 9:34 AM Post #3,723 of 4,456
Mine is the Riccardo Kron limited edition version. Very nice tube. Clarity and naturalness of my U52 but with more fullness and bass like EML 5U4G. I'm sure I don't have the full burn in hours, however, so if it is going to get better that will be bonus.
I ordered one this morning along with a 40s Tung-Sol 5U4G and a later 5U4GB.
 
Dec 16, 2018 at 10:32 AM Post #3,724 of 4,456
I ordered one this morning along with a 40s Tung-Sol 5U4G and a later 5U4GB.

The only thing I don't like is the print on the tube face's to the Stratus' rear. If it were possible to remove the top screw's and turn the socket around then it would be perfect.

KR002.jpg7_5U4G_packshot_1024x1024[1].jpg
 
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Dec 16, 2018 at 10:59 AM Post #3,725 of 4,456
That photo really doesn't do it justice. The tube actually look's Ok. Just takes some time getting used to.
Sorry, it was actually BigSecret's place to reply. Thanks go to him for bringing this high quality rectifier to everyone's attention.
 
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Dec 21, 2018 at 7:57 PM Post #3,729 of 4,456
Got my KR RK 5U4G today
 
Dec 21, 2018 at 8:18 PM Post #3,730 of 4,456
Got my KR RK 5U4G today
Congrats! The KR reminds me of several different rectifier's rolled into one. I will be happy if I can get a long life with it. The thought of not having to replace rectifier's strikes me as a good reason to spend a little more. Plus, shipping is included in the price.
 
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Dec 22, 2018 at 1:49 PM Post #3,731 of 4,456
Anyone with the KR whiskey barrel rectifier care to share impressions against the 422A?
 
Dec 22, 2018 at 2:04 PM Post #3,732 of 4,456
I have spent a delightful morning with my Sylvania Stratus and my HD 600s w/ Toxic Silver poison cable. I am unboxing the KR RK 5U4G and addiing it to the mix to get it some break in time
 
Dec 22, 2018 at 4:00 PM Post #3,733 of 4,456
The KR sounds nice right out of the box. Stratus actually sounds better with new KR than NOS Sylvania 5U4G. Postman just brought me a very nice NOS pair of matched early 1940s RCA black plate 2A3s.
 

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