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RE: 6SN7 experts - GE 6SN7GT vs GE 6SN7GTA...

Posted by Regg (A) on June 5, 2014 at 20:05:54

In Reply to: 6SN7 experts - GE 6SN7GT vs GE 6SN7GTA... posted by Solidcore on May 28, 2014 at 13:43:42:

I'm not even close to being an expert, but I've come to really enjoy the GE JAN-CG-6SN7GT tubes in my Atma-Sphere amp--when they work. They are not the last word in dynamics, basses are a little mushy, but there is a natural liquidity and clarity in the midrange that happens to appeal to me. These have a bottom rectangular getter, gray ladder plates, top round mica, and they also have the 188-5 code. My problem with these is that I have a hard time finding a matched pair that doesn't behave weirdly in my amp.

I also have the GTAs with side getter, gray plates, shorter bottle. These are more neutral than the GTs in my amp, and I never seem to have issues with them, but IIRC they seem a little gritty and drier sounding.

I also have Ken Rads that appear to have the same structure as the GE 6SN7GTs, but they have black plates instead, are dead silent, and have a different '188' code. These have an overall 'darker' sound signature and seem to lack the midrange transparency of the GE GTs.

That's just what I hear. Finding tubes that I like (and can afford) with this amp has been a PITA.

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