Rerurn to Romy the Cat's Site


In the Forum: Audio Discussions
In the Thread: How to get a LOT of SET power.
Post Subject: GU/GM vs. 6C33CPosted by Romy the Cat on: 4/16/2011
fiogf49gjkf0d
 haralanov wrote:
N-set, a friend of mine built an amp with this monstrous USSR tube. It has 3 stages and the GU81M is driven by 6C33C. Within context of driving mid or high sensitivity bass drivers, this is all you need. In comparison, his previous SET with 6C33C sounds like a toy. There is only one tube that can beat GU81M in terms of dynamics and effortlessness in the bass octaves and it is GM100.

 In comparison to GU/GM tubes, SETs with 6C33C sounds like a toy? Haralanov, I would challenge this observation. I would challenge it not becomes I am familiar with GU/GM to well and not because I am 6C33C user as suffer from “insulted ownership”. I would challenge this observation because there is nothing in larger tubes that would be superior to 6C33C in terms of “dynamics and effortlessness”.

What I would like to offer to your friend or to you is to expend on your findings. I do not refuse what you guys say but I challenge. I did see a few times what people report that bigger tubes have  “more dynamics and effortlessness” but it really it is all about the fact that more powerful tubes sit deeper in A1 class or that power powers tube has better drivers that drive them. I do not believe that GU/GM tube is more dynamic then 6C33C if both tubes are driven respectfully identical and drive the appropriate for own power sensitivity. In fact, I think that in respectful to own power operation 6C33C will be MORE dynamic then GU/GM (lower plate R, less wire in OPT...).

Sure, we are not sitting in the same room and exchange opinion about the same Sound and it is very difficult to find any common denominators… Still I feel that what your friend reports might be incorrect.

Rgs, Romy the Cat

Rerurn to Romy the Cat's Site