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Best current production sub for Amperex/Mullard GZ34?

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Posted on August 14, 2020 at 10:29:17
Ivan303
Audiophile

Posts: 48887
Location: Cadiere d'azur FRANCE - Santa Fe, NM
Joined: February 26, 2001
 I know I have a couple NOS stashed away in boxes but since the move, no luck finding them.

At the prices NOS are getting, maybe I keep looking?




First they came for the dumb-asses
And I did not speak out
Because I was not a dumb-ass

 

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I have tried quite a few. Like the Gold Lion U77. Nt, posted on August 14, 2020 at 11:20:59
viridian
 Nt

 

RE: Best current production sub for Amperex/Mullard GZ34?, posted on August 14, 2020 at 14:18:52
lokie
Audiophile

Posts: 1988
Location: Georgia, USA
Joined: January 28, 2003
 I put in a pair of Sovtec's to try a few months ago and haven't taken them out yet.

I love the Gold Lion KT77's so I was keen to try their version of GZ34's but a friend told me they are the same as the Sovtecs except $20 more expensive. I dunno know for sure but they sure look alike... in pictures anyway.

 

RE: Best current production sub for Amperex/Mullard GZ34?, posted on August 14, 2020 at 14:58:06
Jim McShane
Dealer

Posts: 5910
Location: Chicago
Joined: January 13, 2003
 They are NOT the same tube. They are significantly more durable for one thing. They also are quite well constructed. I've also noticed that the voltage drop is VERY consistent from tube to tube and from plate to plate in any given tube.

 

RE: Best current production sub for Amperex/Mullard GZ34?, posted on August 14, 2020 at 20:59:24
Valva Actual
Audiophile

Posts: 183
Location: PNW, USA
Joined: December 19, 2009
 I am not clear on which tube you are praising Jim, could you clarify? Thanks

 

The Genalex reissue U77/GZ34 (nt), posted on August 15, 2020 at 14:03:47
Jim McShane
Dealer

Posts: 5910
Location: Chicago
Joined: January 13, 2003

 

keep looking!, posted on September 27, 2020 at 16:56:46
Colonel Sanders
Audiophile

Posts: 5066
Location: Drinking wine in Perth, WA
Joined: October 30, 2003
 I'm not much of a tube snob but I really haven't found any new production GZ34 that were reliable.

The Mullards on the other hand will just not die. The one in my Dynaco must have 35 years in it. And I still have the same pair in my 300b monoblocks since 2003.
Sounds like chicken!

 

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