Anyone try modern 6sn7 Shuguang WE type vs NOS RCA,Ken Rad


I just bought a KT-88 amp that uses 6sn7’s and the matching preamp uses the 6sn7 tube also. It came with kt88 Shuguang WE plus and all 6sn7’s in the amp and preamp both came with the same Shuguang WE plus.
 

I have a huge stash of old 6sn7’s Ken Rads vt231, gray glass rca, Sylvania vt231 and many others. I am going to pull them out this week and see what these new production tubes can do.

 

I’ve never used new production signal tubes. To be honest the Shuguang sound pretty good but have never compared them to anything. 

 

What are your views on these new tubes are they even close or as good or even better? Are they cheap and will go up in smoke, thanks for any insight.

paulcreed

Who's the most trusted vendor to buy from? 

A prudent question.  I'm currently looking on eBay, although AliExpress is a good alternative if paypal is available.  All from China, I can't see that there is any organised distribution/dealer network.

Focused on one with 6,000 transactions, 99.3% positive feedback   That's for a pair of premium shuguang's, in a fancy solid looking box.

The box is a signal (information) that they are genuine, however defined.  I don't care for the box itself, pffftt.

@paulcreed  My amp uses 6 input tubes. They are in pairs from front of amp to back. Measuring outer diameter at closest position there is 1" between L & R tubes. However, only .25" between front pair, middle pair, and rear pair. 

 

 

 

 

Paul, it's funny you mentioned the sound of your Ken Rads. I'm burning in a pair of NOS from Vintage Tube and there are rolled off highs and no bass extension. So yeah, you need some more hours on those tubes.

 

@noske  Interesting, no dealer network. I would only buy the pair in the box, dont want any loose tubes from China.

Oh, there are outfits like Grant Fidelity that are dealers. I dunno, perhaps others.

I still think its outrageously disingenuous for the manufacturer to use the CV181 name. Its an identity which contains important information.

Its inaccurate and sloppy and absurd.... have the post-modernists taken control of the asylum?

Things are tricky enough at the best of times with tubes without us poor sods (I’m sure I’m not the only one) having to go in circles trying to figure stuff out.

End rant. Phew.