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Title: What tubes in Yeti Post by: SanderH on October 09, 2013, 12:50:04 PM Hello everybody,
I've placed this topic already in the Chupa-forum but due to the lack of response I'll try it here. I've build the yeti 100 a couple of months ago and it works perfectly. Only I'm struggling with getting the best tone out the amp. I've got the whole amp running on JJ 12ax7 tubes and JJ el34. I find the amp to have quite a lot of attack in all era modes. Like it's quite aggressive and edgy. When have the amp set on plexi mode (era in the middle) I miss sort of the smoothness of the plexi sound. Can you advise me in what kind of preamp tubes I could use best to have the optimal sound? Regards Sander Title: Re: What tubes in Yeti Post by: wyatt on October 09, 2013, 05:14:02 PM I haven't use a Yeti, so I'm not sure exactly how smooth and Plexi it can get, despite the description from Ceriatone. There are issues well beyond tubes, there is the heavier '70's style filtering, a different preamp (the topography is never Superlead-esque, regardless of era switch), etc.
But JJ preamp tubes have a reputation of being darker sounding, though less aggressive, than Sinos and some other. The Tung Sols are popular, but you don't want to use the Tung Sol or any spiral filament Russian tube for V2 because they burn up as a cathode-follower. You can use Sovtek 12X7WA and WB in any and all preamp positions, these pre-date the spiral filament. The Chinese Sinos have been stock for Marshall since EI became unavailable, and many people love them. |