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Question About Shuguang Treasure 6CA7-Z Tubes (Read 19209 times)
Pale Rider
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Question About Shuguang Treasure 6CA7-Z Tubes
06/12/11 at 17:58:43
 
I noticed that Steve offers a quad of the Shuguang 6CA7-Z Treasures as an option on the Torii Mk III. Has anyone ordered these or heard them in their Torii? They get great reviews in other amplifiers, and cryo'ed Winged C SEDs are pushing up into their price range. My big question is whether the Shuguang is an actual EL34 for Hazen Grid purposes. Thanks!
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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #1 - 06/12/11 at 18:58:36
 
Just so my question is clear, this piece is on the Tori Mk III page:
Quote:
The TORII uses the famous EL34  / 6CA7 output tube which is the only popular audio tube with all it's grids separately connected.  This means the TORII has complete control over each of these grids and can for lack of a better phrase - Have it's way with them.  The result is a mid-range transparency and better sense of timing not obtainable with anything else. 

I read this as saying that the Shuguang will activate the Hazen Grid.
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Rivieraranch
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #2 - 06/13/11 at 03:11:22
 
Unless I am mistaken the EL34 is the European designation for an American 6CA7.
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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #3 - 06/13/11 at 03:24:46
 
RR, seems you are spot on.
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datman
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #4 - 06/13/11 at 05:31:22
 
I had my Torii III built a year ago with Shuguang Treasure 6CA7-Z tubes and can say they sound magnificent.  All of the characteristic midrange purity with superb performance at the extremes complements of the Hazen Grid mod. I now think the Shuguangs are the best 6CA7/EL34 currently available.
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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #5 - 06/13/11 at 13:52:27
 
Thanks much datman. I have read nothing but good about these. I plan to order two quads but to break in my Toriis with V-caps in with the stock. Did you get V-Caps in yours?

UPDATE 20110613: Shuguangs ordered. Two quads. The Grant Fidelity/Audio For Less folks are great. I have already received my Purolator shipping notice less than two hours later. And as of the morning of 20110614, the tubes have left Calgary.
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« Last Edit: 06/14/11 at 14:38:53 by Pale Rider »  

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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #6 - 06/13/11 at 13:56:44
 
By the way, this post over at Steve Hoffman mentions the Shuguangs and Jeff's evolving impressions of the amp.
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datman
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #7 - 06/13/11 at 18:35:23
 
No VCAPS. I figure the caps Steve uses in his amps are what he considers audiophile grade. This is more than good enough for me. The one upgrade I did do is to use ceramic tube sockets for longevity.
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« Last Edit: 06/13/11 at 18:36:06 by datman »  

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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #8 - 06/13/11 at 18:51:59
 
Hey datman, any chance of seeing a pic of your Torii? I am betting those black Shuguangs look pretty slick.

I don't disagree with you on the quality of caps selected by Steve. I purchased the V-cap option in part for that "quest for elusive perfection," but also because I have been pleased with whatever contribution they made in my Taboo, and I thought that if and when the dire day might come when I have to part with my Torii, the resell value would be good.

FWIW, I do not plan to ever resell. I genuinely see me passing these on to children.
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« Last Edit: 06/13/11 at 21:07:16 by Pale Rider »  

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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #9 - 06/17/11 at 00:22:08
 
Been watching the painful delivery progress of my tubes. Grant Fidelity shipped them promptly, but this online report makes me hope they are packed very, very well [note in inverse order]:

2011-06-16      10:25 AM      Departure via ROSEBURG, OR, US depot      
2011-06-16      08:05 AM      Arrived at via ROSEBURG, OR, US depot      
2011-06-16      04:09 AM      Departure via PORTLAND, OR, US depot      
2011-06-16      03:16 AM      Arrived at via PORTLAND, OR, US depot      
2011-06-15      11:04 PM      Departure via SEATTLE, WA, US depot      
2011-06-15      05:35 PM      Arrived at via SEATTLE, WA, US depot      
2011-06-15      05:25 PM      Departure via SEATTLE, WA, US depot      
2011-06-15      04:43 PM      Departure via SEATTLE, WA, US depot      
2011-06-15      03:45 PM      Import via SEATTLE, WA, US depot      
2011-06-15      09:30 AM      Arrived at via SEATTLE, WA, US depot      
2011-06-15      01:20 AM      Departure via RICHMOND, BC, CA depot      
2011-06-15      12:52 AM      Departure via RICHMOND, BC, CA depot      
2011-06-14      08:34 PM      Export via RICHMOND, BC, CA depot      
2011-06-14      01:41 PM      Arrived at via RICHMOND, BC, CA depot      
2011-06-14      02:50 AM      Departure via CALGARY, AB, CA depot      
2011-06-13      09:50 PM      Export via CALGARY, AB, CA depot      
2011-06-13      06:45 PM      Export via CALGARY, AB, CA depot      
2011-06-13      06:35 PM      Arrived For Export Processing via CALGARY, AB depot      
2011-06-13      03:29 PM      Picked up by Purolator at Reception from Grant Fidelity at CALGARY, AB via CALGARY, AB depot      
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Lon
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #10 - 06/17/11 at 00:36:26
 
They're going to be fine!
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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #11 - 06/17/11 at 00:41:19
 
Cool
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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #12 - 06/17/11 at 21:47:23
 
They are on the local delivery truck. Should have them soon. Cannot wait to plug them into brand new Toriis. In the meantime, when they arrive, I will just stare at them, like some old lecher in South Beach.
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Pale Rider
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #13 - 06/17/11 at 21:48:24
 
Dang, if they sound half as good as they look, this will be fun:


A few more:

Box

Tubeset

Individual Tube
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« Last Edit: 06/17/11 at 21:54:26 by Pale Rider »  

Decware: Ultra | Torii MKIII [2] | SE84ZS | Taboo MkIII Sources: Synology 1812+ | Baetis Revolution | PWD DAC MKII | Lumin Network Player | Mytek 192 | Oppo 105 DSP: DEQX Mate | Emotiva Outputs: ERR [6] + Servo Subs | LCD-2 & other cans
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Lon
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"Love without
guts is
worthless!"
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Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #14 - 06/17/11 at 21:56:27
 
Man. . those cost too much! But they're pretty.
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