Tung-Sol 6SN7GTB Platinum Grade / No Cryo Reviews

4.8 Rating 24 Reviews

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“Very enjoyable in my Atma-Sphere MP-3.4 preamp. Have about 50 hours on them and they continue to change. Initial impressions were favorable but not overwhelmingly positive, but they have balanced out with time. Resolving of low level detail but not necessarily the best I’ve heard - this tube is all about coherence and balance. Significantly superior (in this Atma-Sphere circuit) than the twice as expensive Linlai Global Elites. As always, the quality of tubes from Upscale are unimpeachable- dead quiet.”

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Posted 2 weeks ago

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Posted 1 month ago

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Posted 4 months ago

“my go-to-6sn7GTB.! i first used this on a schitt Freya+ and it was wonderful. Dynamics were there and bass / lower midrange was solid. Now I am using it as a driver tube for an 845 amp and it works wonderfully. it may not be a NOS tube, but for a driver tube, its all you will need”

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Posted 1 year ago

“These are the same brand as VAC factory tubes. I needed a complete replacement set for my 200iQ amps. While I haven't installed them yet I don't anticipate any issues with them.”

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Posted 1 year ago

“Sweet sounding and delivery was very fast. Ordered on a Thursday arrived on a Saturday. I replaced some RCA black base tubes with these. I bought a used Rogue Audio Model 99, my first ever tube component. My system has never sounded better. It only gets four stars because I have nothing to compare it to.”