Welcome, Guest. Please Login or Register
Decware Audio Forums
10/26/14 at 04:09:05


Pages: 1 ... 3 4 5 6 7 8
Send Topic Print
Question About Shuguang Treasure 6CA7-Z Tubes (Read 23855 times)
Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. D*ck

Posts: 7696
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #60 - 07/06/11 at 23:30:07
 
I thought it would, I had one in a guitar amp that was broken that way and it worked, the only danger being pinning it wrong. . . .
Back to top
 
 

Decware:ERR,HR-1,ZP3,CSP2+,Torii Mk III,PS Audio PWT+DS,
PowerBases,PPP,AC-12 pcs, Denon DBP-A100, Denon DCD-A100,Rega RP3 +TTPSU,white belt+Exact2, VooDoo Cable:Evo,Ultra Linear, Iso-PodMapleshade:Double Heiix Plus.Samsonv2+v3 +4" platforms,Herbie's Iso-Cup
  IP Logged
Pale Rider
Seasoned Member
****




Posts: 1272
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #61 - 07/07/11 at 15:36:36
 
Brent tells me he sees this problem with modern tubes not fitting old sockets well, especially in the Chinese tubes. He recommended some socket savers from Antique Electronic Supply. I ordered a few and will leave them installed in the tester.
Back to top
 
 

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
  IP Logged
will
Seasoned Member
****




Posts: 1238
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #62 - 07/09/11 at 01:15:01
 
PR, Sorry if I missed it, but can you post a link or company name where you bought the less costly tubes?
Back to top
 
« Last Edit: 07/09/11 at 01:16:15 by will »  

Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
  IP Logged
Pale Rider
Seasoned Member
****




Posts: 1272
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #63 - 07/09/11 at 04:37:35
 
Will, I bought my third quad on fleabay. Here is a current auction for two. Hope that helps.

Greg
Back to top
 
 

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
  IP Logged
will
Seasoned Member
****




Posts: 1238
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #64 - 07/09/11 at 07:28:39
 
Thanks Greg, Have you looked at this?

http://shuguangtreasure.com/wordpress/2010/12/21/difference-between-factory-matc...

They seem quite convinced that standard measurements alone are not enough??? With all the "well matched" NOS tubes I have, now that could throw a wrench into my works!
Back to top
 
 

Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
  IP Logged
Pale Rider
Seasoned Member
****




Posts: 1272
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #65 - 07/09/11 at 20:56:03
 
Will I did see that, and it was one of the reasons I felt the "investment" was worth it with Grant Fidelity. The only way to know for sure will be to swap out whole quads in the Torii.
Back to top
 
 

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
  IP Logged
will
Seasoned Member
****




Posts: 1238
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #66 - 07/09/11 at 21:17:01
 
Greg,

Please do keep us informed! I think the thing that got my attention more than sound was the theory that longevity issues can be revealed with the more complex testing. Hmmm. I guess at this point, I would be inclined go with the Grants "investment" too if I buy the tubes. I can't wait to get your impressions.
Back to top
 
 

Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
  IP Logged
Gopher
Senior Member
***




Posts: 96
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #67 - 07/09/11 at 22:52:18
 
Ehh...  one can get a matched quad of the 6ca7s for about 50% of what Grant Fidelity charges from a source that has never steered me wrong.  On the other hand, I the one premium pair of Shuguangs I got from Grant (Psvane 845) left me feeling numb and was ultimately sold.

My personal feeling is that its effective marketing.
Back to top
 
 
  IP Logged
will
Seasoned Member
****




Posts: 1238
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #68 - 07/09/11 at 22:56:24
 
Gopher,

And what might that source be?
Back to top
 
 

Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
  IP Logged
Pale Rider
Seasoned Member
****




Posts: 1272
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #69 - 07/09/11 at 23:23:02
 
My third quad was picked up from this auction. I am not complaining, but the fact that it was one of these tubes that broke an octal post when testing, and that my seller has disclaimed any interest in assessing the cause, causes me to ascribe ome value to the Grant Fidelity overhead price. So, best I can do is compare the two, continue testing (once I get my socket savers in), and see what happens.

I do think Grant Fidlity makes some valid points about how matching alone does not provide the necessarily most predictive results. OTOH, it may well be that the 100% markup cannot be justified by any amount of longevity. Don't know. Yet.
Back to top
 
« Last Edit: 07/09/11 at 23:27:21 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
  IP Logged
Gopher
Senior Member
***




Posts: 96
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #70 - 07/09/11 at 23:58:23
 
I have bought my Shuguang tubes from goodcomponent.com  Clark over there has been honest and helpful and even honored a warranty replacement when the bad pair of tubes I returned to him were lost in the mail.

Back to top
 
 
  IP Logged
Pale Rider
Seasoned Member
****




Posts: 1272
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #71 - 07/10/11 at 00:10:06
 
Thanks Gopher. Are those guys affiliated with the same people who make DACs, headphone amps like the GD-Audio Phoenix, and other stuff?

Anyway, looks encouraging. I put in an inquiry on the ST 6CA7-Z.
Back to top
 
« Last Edit: 07/10/11 at 00:15:05 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
  IP Logged
Gopher
Senior Member
***




Posts: 96
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #72 - 07/10/11 at 00:21:39
 
I'm not sure to be honest.  I read about them in a thread on audioasylum and have used them a few times for tubes only.
Back to top
 
 
  IP Logged
will
Seasoned Member
****




Posts: 1238
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #73 - 07/10/11 at 00:22:01
 
Thanks Gopher.
Back to top
 
 

Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
  IP Logged
Rivieraranch
Seasoned Member
****




Posts: 1274
Re: Question About Shuguang Treasure 6CA7-Z Tubes
Reply #74 - 07/10/11 at 02:58:00
 
Reading the information provided by [Cary] Grant Fidelity, Shuguang quality leaves a whole lot to to be desired.
Back to top
 
 

DECWARE CSP2+, TABOO MK III; SE84CKC; HR1; TRAPEZIUM DESKTOP SPEAKERS; TECHNICS SL1200MK5 turntable; Ah! Njoe Tjoeb CD player; MARANTZ 2226B, 2216B receivers; SENNHEISER HD-580 headphones
  IP Logged
Pages: 1 ... 3 4 5 6 7 8
Send Topic Print